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129 Cards in this Set
- Front
- Back
THE MOST RELIABLE INDICATOR OF PAIN
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SELF-REPORT OF PATIENT
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PHYSIOLOGIC PROCESS THAT COMMUNICATES TISSUE DAMAGE TO THE CENTRAL NERVOUS SYSTEM
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NOCICEPTION
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MYELINATED FIBERS THAT MOVE PAIN IMPULSES ALONG VERY QUICKLY; OFTEN TRANSMIT SHARP PIERCING, LOCALIZED PAIN THAT TENDS TO BE INTERMITTENT
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A DELTA FIBERS
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UNMYELINATED FIBERS THAT MOVE PAIN IMPULSES ALONG SLOWER AND MORE DIFFUSELY; OFTEN TRANSMIT DULL, ACHY, CRAMPING PAIN THAT TENDS TO BE PERSISTENT
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C FIBERS
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Theory that suggests that the spinal cord contains a neurological "gate" that either blocks pain signals or allows them to continue on to the brain. Unlike an actual gate, which opens and closes to allow things to pass through, the "gate" in the spinal cord operates by differentiating between the types of fibers carrying pain signals. Pain signals traveling via small nerve fibers are allowed to pass through, while signals sent by large nerve fibers are blocked. It is often used to explain phantom or chronic pain.
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Gate Control theory
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These are thought to be responsible for opening and closing the "gates" noted in the Gate Control Theory of pain.
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Endorphins
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Why does distraction work to reduce pain in terms of the gate control theory?
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Distractions are thought to produce endorphins, which are thought to be responsible for controlling the gates in gate control theory.
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Ibuprofen inhibits these at the transduction stage of pain
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Prostaglandins
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Acute pain, often associated with injury; often sharp and burning pain
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Nociceptive pain
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This type of pain runs along nerve fibers (ex. phantom limb pain)
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Neuropathic pain
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This type of pain serves a biological purpose by acting as a warning sign; activates SNS; time-limited (less than 3 months or time for normal healing to occur); includes post-operative, labor, and trauma pain; treatment goal is pain control with eventual elimination
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Acute pain
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This type of pain does not go away; lasts greater than 3 months, difficult to localize, treat, determine underlying cause; treatment focuses on control while enhancing function and improving quality of life; gradual onset; characterized by waxing and waning
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Chronic pain
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This type of pain involves aching or throbbing that is localized; the result of injury to bones, joints, muscles, skin, or connective tissue
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Somatic pain
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This type of pain involves tumors or obstruction; arises from internal organs such as intestines and bladder
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Visceral pain
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This type of pain involves damage to the peripheral nerves or CNS; often burning, shooting, stabbing, or electrical in nature; sudden, intense, short-lived, or lingering
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Neuropathic pain
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The differences between acute pain and chronic pain are based on ___
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Cause, course, manifestation, and treatment
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This type of pain is transient, moderate to severe, occurs beyond treated pain, has rapid onset and brief duration, and exists through med treatment
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Breakthrough pain
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Pain treatment is best achieved with (drug/nondrug) therapy.
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Drug and nondrug (combination)
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Three categories of meds for pain treatment
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Nonopioid, opioid, and adjuvant (co-analgesic)
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This is when increasing the dose of meds above the upper limit produces no greater analgesia (Nonopioids)
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Analgesic ceiling
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Nonopioids are used for (mild/moderate/severe) pain
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Mild to moderate
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True or false - nonopioids do not produce tolerance or addiction
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True
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Advantages and disadvantages of ASA for pain treatment
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Advantages - also an anti-inflammatory; good for cardiac disease; does not produce tolerance or addiction
Disadvantages - can produce GI bleed and inhibits clotting |
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Maximum dose of Acetaminophen per day
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4 g (4000 mg) per day
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Adverse effect of Ibuprofen related to sodium
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May cause hypernatremia (high sodium, causing water retention)
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This type of pain med binds to receptors in the CNS, inhibiting the transmission of nociceptive input, altering limbic activity, and activating descending inhibitory pathways
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Opioids
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Examples of pure agonist opioids with no analgesic celing
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Morphine, oxycodone, and codeine
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This ingredient in cough medicine and antitussives is converted to morphine in the body
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Codeine
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Advantages and disadvantages of partial agonist opioids
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Advantages - Less respiratory depression
Disadvantages - more dysphoria, agitation; has analgesic ceiling; can precipitate withdrawal |
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Common side effects of opioids
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Most common - constipation (decreases peristalsis)
Also - nausea and vomiting (usually decreases after 24 hours), sedation, respiratory depression, pruritis |
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Given to patients experiencing pruritis from taking opioids
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Narcan (reverses effects of opioids) - given IV push
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Given to patients experiencing nausea and vomiting from taking opioids
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Antiemetics
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Side effects of using PCA (Patient-Controlled Analgesia)
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Inability to void; nausea and vomiting; pruritis; other symptoms associated with opioids
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Most common type of PCA
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Demand dose PSA (patient administers to self when needed)
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This is a form of continuous dosing PCA
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Basal dose
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Lockout intervals for PCA
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Patient given preset dose at preset intervals (ex. every 10 minutes)
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These are used in conjunction with opioids and nonopioids (combination therapies); generally used for other purposes but also effective for pain; examples include antidepressants, antiseizure meds, etc.
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Adjuvant therapies
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These types of drugs can be used in combination with opioids/nonopioids for neuropathic pain
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Antiseizure meds
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Why are beta blockers given in conjunction with pain meds to manage pain?
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Reduces tachycardia, sweatiness, and SNS symptoms associated with pain
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Constant pain requires med administration at what intervals?
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Around the clock (not PRN - do not wait for severe pain to develop)
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The route of choice for pain administration with functioning GI tract
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Oral
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This route of med administration for pain exempts drug from first-pass effect
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Sublingual and buccal
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When administering pain meds to the elderly, what is the general rule of thumb for dosage?
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Start slow, go low - use half of lowest recommended dose for elderly population and adjust from there
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What is the least frequently used route of med administration for pain management? Why?
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IM - poorly absorbed and many side effects
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This type of interventional pain therapy interrupts all afferent and efferent transmission, not only nociceptive input; used during and after surgery to manage pain
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Nerve blocks
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This type of interventional pain therapy is used for severe pain unresponsive to other therapy; it destroys nerves to stop pain transmission
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Neuroablative techniques
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This type of interventional pain therapy is usually for intractable back pain; it involves electrical stimulation of brain and spinal cord
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Neuroaugmentation
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Nondrug therapies for pain
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Massage, exercise, TENS or PENS, acupuncture, heat or cold therapy, cognitive therapies (distraction, hypnosis, imagery, relaxation); these all increase endorphins, decrease edema; advised to use in combination
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Common concerns for pain meds
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1. Tolerance
2. Physical dependence (over time with opioids) 3. Addiction (occurs over long period with psychological aspect) |
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JCAHO guidelines for pain
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1. Recognize patient's rights
2. Identify pain 3. Educate providers, patients, and families in assessment and managemetn |
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Ethical issues in pain management
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1. Fear of hastening death by administering analgesics
2. Requests for assisted suicide 3. Use of placebos in pain assessment and treatment (cannot give without permission) |
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Three phases of perioperative nursing
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Preoperative, intraoperative, postoperative
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Phase of perioperative nursing that includes the period of time from the decision for surgery until the patient is transferred into the OR
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Preoperative phase
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Phase of perioperative nursing that includes the period of time when the patient is transferred to the OR to the admission to the post-anesthesia care unit (PACU)
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Intraoperative phase
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Phase of perioperative nursing that involves the period of time when the patient is admitted to the PACU and ends with the follow-up evaluation in the clinical setting or at home
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Postoperative phase
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If a patient scheduled for surgery is a smoker, when should the nurse listen to lung sounds?
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Before surgery (admission to OR) and after (compare)
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How may complementary and alternative medicine impact surgery?
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Some therapies may cause bleeding, etc
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At what age is a patient at risk for age-related complications from surgery?
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65
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Rare life-threatening condition triggered by exposure to most anesthetic agents, involving drastic and uncontrolled increase in skeletal muscle oxidative metabolism (breakdown) that can overwhelm body's capacity to supply O2, remove CO2, and regulate body temperature (patient will have high temp); leads to circulatory collapse and death if untreated; often inherited
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Malignant hyperthermia
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What types of labs/diagnostic tests should be taken prior to surgery?
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Urinalysis, blood type and screening, CBC, clotting studies, electrolytes, creatinine and BUN, pregnancy tests, CXR, and ECG (if over 40 or history of heart disease)
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This common anti-clotting agent is contraindicated for surgical procedures
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Coumadin (Wayfarin)
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Why are patients over 65 years of age at increased risk for surgery-related complications?
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May have chronic illnesses; may have delayed wound healing; often have decreased muscle mass and body water
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How does body weight affect surgical risk?
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Malnourishment affects wound healing negatively; obesity increases risk due to absorptive qualities of fat for analgesic meds, decreased mobility due to obesity and increased DVTs, and potential evisceration
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What parts of the body are more risky for surgical procedures?
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Neck, oral, facial (highest); chest or high abdomen; abdomen
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What information must be part of informed consent prior to surgery?
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Nature and reason for surgery, who will be performing the surgery and who else will be present, all available options and risks with each, risks with surgery and potential outcomes, risks with anesthesia
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What are nursing safety priorities that go with informed consent?
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Nurse must clarify facts and dispel myths, verify that consent was signed, and signature must be witnessed
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What is the purpose of lower extremity exercises post-operatively?
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Prevent emboli
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What is the proper technique for splinting post-operatively?
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Splinting – towel and pillow, held firmly in place over surgical site – 3 slow deep breaths, cough to clear secretions
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What is the purpose of splinting after surgery?
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Breathing gets difficult when you break a rib or have surgery between your waist and shoulders. When you move broken bone ends against each other or flex muscles stitched together with wire or twine, you experience pain. Splinting is a way to immobilize or cushion those movements so you can fully expand your lungs or cough with a little less discomfort,
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Why are patients encouraged to use incentive spirometers post-operatively?
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To prevent atelectasis
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Who are the members of the surgical team?
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Patient; anesthesiologist or anethetist; surgeon and surgical assistant; perioperative nursing staff
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What zones make up the surgical environment?
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Unrestricted zone; semirestricted zone; restricted zone
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All materials in contact with a wound and within a sterile field must be __
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Sterile
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Gown are sterile in the front from ___ and sleeves are sterile from ___
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Chest to level of sterile field; 2 inches above elbow to cuff
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What part of a draped table is considered sterile?
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Only the top
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At least __ (distance) from the sterile field must be maintained.
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1 foot
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What are the two aspects of general anesthesia?
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Analgesia (no pain) and amnesia (no memory)
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What are the stages of anesthesia?
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1. Analgesia and sedation, relaxation
2. Excitement and delirium (patient no longer aware; loss of reflexes) 3. Operative anesthesia and surgical anesthesia 4. Danger |
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What are the 4 main complications related to anesthesia during surgery?
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1. Malignant hyperthermia
2. Overdose 3. Hypoventilation 4. Intubation complications |
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What are the four main positions for surgery?
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Laparotomy, trendelenberg, lithotomy, side-lying
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Why are elderly patients at increased risk for complications due to surgery and anesthesia?
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1. Increased likelihood of coexisting conditions
2. Aging heart and pulmonary systems 3. Decreased homeostatic mechanisms 4. Changes in responses to drugs and anesthetic agents due to aging changes such as decreased renal function, and changes in body composition of fat and water |
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In this surgical environment, this zone represents the open area where scrubs and caps are not required
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Unrestricted zone
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In this surgical environment, this zone requires you to wear scrubs and caps but not aseptic technique
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Semirestricted zone
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In this surgical environment, this zone requires everyone to maintain aseptic technique; you must wear scrubs, caps, gloves, shoe covers, and masks
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Restricted zone
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The environmental controls in OR involve __ air exchanges per hour and a colder environment
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15
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This OR nurse coordinates the surgical environment, including getting consent from the patient, maintaining the temperature of the room, initiating a timeout at beginning of the procedure, and is clean but not sterile
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Circulating nurse
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This OR nurse is the assistant to the surgeon, handing the surgeon the tools and maintaining aseptic technique; this nurse usually works with the same surgeon for every procedure
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Scrub nurse
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What is a surgical "time-out"?
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At beginning of surgery, the whole OR team stands around patient to discuss what is going on and what they think will happen (WHO - surgical safety checklist); this decreases errors significantly
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This involves the use of sedation in surgery to depress the level of consciousness without altering the patient's ability to maintain a patent airway and to respond to physical stimuli and verbal commands; involves a hypnotic, a sedative, and an opioid in combination; short-acting
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Moderate sedation
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How soon can a patient eat after receiving moderate sedation?
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30 minutes and not until gag reflex returns
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What are the advantages and disadvantages of local or regional anesthesia?
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Advantages - allows patient to participate and has no food restrictions
Disadvantages - not as much control as general anesthesia; short-acting |
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This type of anesthesia produces its effect when inhaled
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Inhaled anesthetic agents
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All inhaled anesthetic agents are administered in combination with __ and usually __ as well
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Oxygen; nitrous oxide
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Epidural anesthesia is achieved by injecting a local anesthetic agent into the epidural space that surrounds the __ of the spinal cord
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Dura mater
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Spinal anesthesia is achieved by injecting a local anesthetic agent through the dura mater into the __ surrounding the spinal cord
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Subarachnoid space
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(Epidural/spinal) anesthesia uses higher doses
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Epidural
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What is the main advantage of epidural anesthesia over spinal anesthesia? The main disadvantage?
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No headache; more difficult to introduce the anesthetic agent into the epidural rather than the subarachnoid space
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This type of anesthesia produces anesthesia of the lower extremities, perineum, and lower abdomen
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Spinal anesthesia
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__ may be an after-effect of spinal anesthesia
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Headache
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Local anesthesia is often administered in combination with __, which constricts blood vessels, preventing rapid absorption of the anesthetic agent and thus prolongs its local action
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Epinephrine
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If a patient gags during the intraoperative period, what is the first intervention the nurse must use?
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Patient is turned to the side, the head of table lowered, and basin is provided to collect vomitus
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Why is hypoxia a risk with the use of anesthesia in surgery?
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Respiratory depression caused by anesthesia, aspiration of respiratory secretions, and patient's positioning on operating table
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Why may metabolic acidosis occur during surgery?
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Glucose metabolism is reduced
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What are the initial symptoms of malignant hyperthermia?
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Tachycardia (HR faster than 150 bpm); SNS stimulation signs; muscle rigidity
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True or false - high temperature is one of the earliest signs of malignant hyperthermia
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False - high temp is one of the late signs
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What are the general nursing goals for care of a patient during surgery?
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Reduced anxiety, absence of latex exposure, absence of positioning injuries, freedom from injury, maintenance of patient dignity, and absence from complications
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In laparotomy position during surgery, a strap is placed ___
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Above the knees
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Sims or side-lying position is used for what type of surgery?
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Renal surgery
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This is partial or complete separation of wound edges
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Dehiscence
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This is the protrusion of organs through the surgical incision
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Evisceration
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This method of healing involves a wound whose edges are surgically approximated (with stitches or staples) and integumentary continuity is restored without granulation
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First intention
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This is an area where postoperative patients are monitored as they recover from anesthesia; formerly referred to as the recovery room
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Postanesthesia Care Unit (PACU)
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This method of healing involves a wound whose edges are not surgically approximated and integumentary continuity is restored by the process known as granulation
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Second Intention
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This method of healing involves a wound whose edges are not initially approximated (delayed closing) and integumentary continuity is restored by apposing areas of granulation
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Third Intention
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What are the three phases of postanesthesia care?
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1. Phase 1 PACU (immediate recovery phase, with intensive nursing care)
2. Phase 2 PACU (patient prepared for self-care or care in hospital) 3. Phase 3 PACU (patient is prepared for discharge) |
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How often are vital signs checked after initial assessment in the PACU?
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Every 15 minutes
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True or false - a systolic blood pressure of 90 mm Hg in the PACU is considered acceptable
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False - it is considered immediately reportable
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What is the primary objective in the immediate postoperative period of the nurse with the patient?
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Maintain ventilation, thus preventing hypoxemia and hypercapnia; both can occur with hypoventilation (airway is obstructed and ventilation is reduced)
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Because movement of the thorax and diaphragm does not necessarily indicate the patient is breathing, the nurse needs to do what with a patient who has had prolonged anesthesia?
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Place palm of hand at the patient's nose and mouth to feel the exhaled breath
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How is hypopharyngeal obstruction treated after anesthesia?
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Tilt head back and push forward on angle of lower jaw, as if to push the lower teeth in front of the upper teeth; this pulls the tongue forward and opens the air passages
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Why does hypopharyngeal obstruction occur?
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Neck flexion permits the chin to drop toward the chest during surgery; often occurs when head is in midposition, blocking off the airway
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What are the classic signs of hypovolemic shock?
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Pallor; cool, moist skin; rapid breathing; cyanosis of lips, gums, and tongue; rapid weak thready pulse; narrowing pulse pressure; low BP; concentrated urine
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When should a patient void before having surgery?
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Right before going to the OR
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What is the rule concerning wearing jewelry during surgery?
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A patient should not wear any jewelry in the OR; some institutions may allow a ring to be worn if taped to the finger
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How is the patient's skin prepared prior to surgery?
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No shaving; clipping of hair may be necessary; patient may be instructed to use a soap containing a detergent-germicide to clean the skin for several days prior to surgery to reduce skin organisms
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What is the major purpose of withholding fluids and food before surgery?
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To prevent aspiration
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What are the new guidelines for food and fluids prior to surgery?
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Generally, adults may be advised to fast for 8 hours prior to surgery (except for surgery that involves the GI tract); many patients are now allowed to have clear fluids up to 2 hours prior to an elective procedure
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Why is a patient kept in bed with side rails up after being given preanesthetic medication?
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May cause drowsiness or lightheadness (fall risk)
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Why are patients encouraged to cough post-operatively?
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Mobilize secretions so that they can be removed; prevents atelectasis
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