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95 Cards in this Set
- Front
- Back
The random movement of particles in all directions |
Diffusion |
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The natural tendency is for a substance to move from an area of _____ concentration to an area of _____ concentration. |
Higher; lower |
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One example is the movement of ______ from the alveoli to the pulmonary capillaries |
Oxygen |
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The concentration of oxygen in the alveoli is ______ than in the capillaries; therefore oxygen diffuses unto the capillaries and is transported through the _______ to other parts of the body |
Greater; bloodstream |
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_____ is when a carrier protein transports the molecule through membranes toward an area of lower concentration. This process does not require ______. |
Facilitated diffusion; energy |
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An increase in body of water |
Fluid overload |
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Two types of excess fluid volume |
Extracellular and intracellular |
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Extracellular fluid excess |
Isotonic |
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Intracellular fluid excess |
Hypotonic |
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Excess fluid volume may result from ______ and ______ failure with retention of fluid, increased ADH production, overload with isotonic IV fluids, or administration of D5W after surgery or trauma |
Renal and cardiac |
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The body attempts to compensate for excess fluid volume by __ the filtration and excretion of sodium and water by the kidneys and decreasing the production of ___ |
Increasing; ADH |
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The severity of the __ in excess fluid volume depends on how quickly the condition develops |
Symptoms |
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Severe excess fluid volume can cause or aggravate __ and __ |
Heart failure and pulmonary edema |
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Occurs when the body retains too much hydrogen ions or loses too many bicarbonate ions with |
Metabolic acidosis |
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With too much acid and too little base the ph of blood |
Falls |
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When the ph falls it leads to __ because the lungs try to compensate by blowing off co2 and lowering paco2 levels which __ the ph. |
Hyperventilation; raises |
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Starvation, dehydration, diarrhea, shock, renal failure & diabetic ketoacidosis cause what? |
Metabolic acidosis |
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Changing levels of consciousness, headache, vomiting, diarrhea, anorexia, muscle weakness and cardiac dysrhythmias are signs & symptoms of what? |
Metabolic acidosis |
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Assessment of the patient in metabolic acidosis should focus on? |
Vital signs, mental status, and neurological status |
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Substances from an area of lower concentration to an area of equal or greater concentration |
Active transport |
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The transfer of water and solutes through a membrane from an area of high pressure to an area of low pressure |
Filtration |
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Movement across a membrane from a less concentration to a more concentration solution |
Osmosis |
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When electrolytes are broken down in water they become |
Ions |
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Positively charged ions |
Cation |
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Negatively charged ions |
Anion |
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Sodium, potassium, calcium and magnesium are all |
Cations |
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Chloride, bicarbonate, and phosphate are all |
Anions |
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The concentration of a solution by number of dissolved particles per kg of water |
Osmolality |
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Controls water movement and distribution by regulating the concentration of fluid in each body fluid compartment |
Osmolality |
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Check the patients urine output before administering |
Potassium |
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Urine output should be no less than |
30 ml/hr |
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__ is always diluted before administration and is never given IV push. |
Potassium |
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Rapid infusion of potassium can cause |
Cardiac arrest |
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Patients with decreased renal function, people in metabolic acidosis and people taking potassium supplements are at risk for this |
Hyperkalemia |
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What drug promotes excretion of excess potassium through the intestinal tract? |
Kayexalate |
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Earliest sign of fluid deficit in older adults |
Constipation |
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An __ hematocrit is seen with deficient fluid volume and dehydration because blood is more concentrated |
Increased |
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__ is consistent with excess fluid volume because of dilution |
Low hematocrit |
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Normal range for hematocrit |
Men- 40-54% Women- 38-47% |
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Older adults often have a reduced sense of __ and therefor may be in a state of chronic __. |
thirst; dehydration |
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Fluid requirements for ages 55 to 65 |
30 ml/kg |
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Fluid requirements for ages 65 and older |
25 ml/kg |
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Pulse, respirations, temperature and blood pressure can indicate changes in? |
Fluid and electrolyte imbalance |
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Urine characteristics also give clues to? |
Fluid balance |
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Darker, concentrated urine indicates the kidneys are? |
Retaining water |
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Dry, flushed skin indicates |
Dehydration |
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Pale, cool, clammy skin indicates |
severe fluid volume deficit that occurs with shock |
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soft eyeballs and sunken eyes indicate |
severely deficient fluid volume |
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puffy eyelids and fuller cheeks suggest |
excess fluid volume |
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measured by pinching the skin over the sternum, clavicle, or the forehead |
skin turgor |
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In patients that are __, skin flattens more slowly after the pinch is released |
dehydrated |
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reflects water and sodium retention, which can result from excessive reabsorption or inadequate secretion of sodium |
edema |
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depression remains in the tissue after pressure is applied with a finger tip |
pitting |
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sodium excess causes the tongue to appear? |
red and swollen |
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less water than normal in the body |
fluid volume deficit |
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the body attempts to compensate for fluid volume deficit by? |
decreasing urine output |
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when in fluid volume deficit the heart rate? |
increases |
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when in fluid volume deficit the blood pressure? |
decreases |
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timing of heat application? |
no more than 30 minutes at a time |
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pain experienced by fresh surgical patients -- physician may order around the clock meds for first 24-48 hours |
predictable pain |
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timing for cold application in order to prevent tissue injury or frostbite |
15 minutes at a time |
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cold is contraindicated for patients with peripheral vascular disease or heart disease because it may cause? |
further vasoconstriction of blood vessels and decrease circulation |
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requires a physician's order and is handled by the physical therapy department |
TENS unit |
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this therapy involves external electrical stimulation on the skin and underlying tissues through electrodes attached to a small unit that the patient can carry around; delivers low-voltage electrical currents to block pain signals |
TENS unit |
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blocks effects at receptor sites; designed to produce analgesia and block certain side effects |
opioid agonist-antagonist |
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pain experienced in a location different from its source |
referred pain |
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side effects of opioids |
constipation; sedation; respiratory depression |
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JACHO says all patients must be assessed for this upon admission, on a regular basis and after intervention |
pain assessment |
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__ is whatever the person experiencing it says it is and exists whenever they say it does |
pain |
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To administer Morphine IM you may need to use what size needle? |
1.5 inch |
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Factors that cause gate to open |
tissue damage; a monotonous environment; and fear of pain |
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stimulation of large diameter fibers can close the gate and interfere with impulse transmission between spinal cord and the brain causing? |
diminished pain perception |
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afferent and efferent pathways of the central nervous system carry the messages for? |
interpretation |
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nerves that carry messages TO the brain for interpretation |
afferent pathways |
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nerves that carry messages AWAY from the brain via the spinal cord |
efferent pathways |
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natural opioid like substances that block transmission of painful impulses to the brain |
endorphins; serotonin; norepinephrine |
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pneumonic for identifying warning signs associated with cancer |
C-change in bowl or bladder habits A-a sore that does not heal U-unusual bleeding or discharge T-thickening or lump in a breast or elsewhere I-indigestion or difficulty swallowing O-obvious change in wart or mole N-nagging cough or hoarseness |
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cells that are relatively harmless, primarily because they do not spread to other parts of the body |
benign cells |
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cells that change in appearance from normal cells or tissue of origin |
malignant cells |
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a cardiotoxic drug used to treat cancer, antitumor antibiotic, antineoplastic drugs, classified as biotherapy |
adriamycin |
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toxic effect on heart can lead to? |
heart failure |
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common cancer sites for women |
breast; lung; colon; rectum; uterine corpus; thyroid |
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common cancer sites for men |
prostate; lung; bronchus; colon; rectum; and urinary bladder |
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standard dose of Roxanol |
10 or 15 mg |
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for cancer pain |
Roxanol |
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detects cancer cells in cervical smear, specimens of body fluids, secretions, or tissues are obtained and examined microscopically to detect the presence of malignant cells |
pap smear |
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these patients should remember that although they are going to die eventually, they are living now and can still have some pleasure |
terminally ill |
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sedation scale |
S-sleeping but easily aroused 1-awake and alert 2-slightly drowsy 3-frequently drowsy; drifts to sleep (Alert RN) 4-no response (emergency) |
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Stages of Cancer Stage 1 |
malignant cells are confined to the tissue of the origin; no invasion of other tissues takes place |
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Stages of Cancer Stage 2 |
limited spread of the cancer occurs in the local area, usually to nearby lymph nodes |
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Stages of Cancer Stage 3 |
the tumor is larger or has spread from the site or origin to nearby tissues (or both); regional lymph nodes are likely to be involved |
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Stages of Cancer Stage 4 |
cancer has metastasized to distant parts of the body; also described as advanced stage |
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TNM Staging System for Cancer |
T- tumor 2, 3, 4 N- regional lymph nodes M- distant membranes |
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once a therapeutic limit is reached, increases in dose may produce side effects but no further beneficial effects |
ceiling effect |
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the most dangerous adverse effect of antineoplastic drugs used in chemotherapy |
bone marrow suppression |