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168 Cards in this Set

  • Front
  • Back
Signs of Hypothyroidism
-Lethargy
-Confusion
-Poor concentration
-Skin cold/dry
-Brittle hair
-Flat affect
-Fatigue
signs mimic depression
(IMPORTANT TO ASSESS FOR PREGNANCY because hypothyroidism is teratogenic)
Primary hypothyroidism
Thyroid cannot produce amount of hormone that the pituitary calls for
Secondary hypothyroidism
Thyroid isn't being stimulated enough by the pituitary to produce enough hormone
Treatment of hypothyroidism
Give T4 (levothyroxine) which converts to T3
Synthroid logistics
Levothyroxine:
-Narrow therapeutic range
-Must take PO on empty stomach
-Highly protein bound, long half-life
-Adverse effects are usually dur to too much of the hormone
Drug-drug interactions that decrease thyroid levels:
-Calcium
-Iron
-Questran
(take 4 hours apart from levothroxine)
Drug-drug interactions that increase thyroid levels:
-Dilantin
-Zoloft
-Phenobarbital
Levothyroxine enhances __________
Coumadin
Levothyroxine increases needs of _________
Insulin because T3 causes more glycogen to glucose conversion
Hyperthyroidism manifestations
-"Bug eyes" (Grave's disease)
-Goiter
-Increased HR/BP
-Tremor
-Insomnia, anxiety, irritability
-Osteoporosis
-Sweating
-Everything hot, irritated, excessive, fast, restless
Treatment of Hyperthyroidism
-Depends on which organ is involved/causing it
-Surgery of all or part of the gland
-Radiation (to destroy part of the gland non-invasively)
-PTU
Propylthiouracil (PTU)
-Suppresses thyroid hormone production
-Oral--rapidly absorbed
-Short half life
-Prevents synthesis of T4-->T3
-Does not destroy already existing thyroid hormone, cannot use in hypertensive crisis
Adverse complication of PTU:
Agranulocytosis: dangerously low WBC count
PUD
-Ulcers can hemorrhage
-Ulcers are found mostly in the lesser curvature of the stomach
-Affects 10% of adults at some point in their lives
PUD is mostly caused by ____________ rather than ____________
H. pylori when defenses are down and bicarbonate balance is off rather than acid alone
Other common causes of PUD
-NSAIDs
-Glcuocorticoids
Nicotine and PUD
impairs healing of ulcers due to vasoconstriction
Treatment of ulcers--Antibiotics
Use THREE different antibiotics + H2 antagonist or proton pump inhibitor
-Amoxicillin the best antibiotic for H. pylori
S/E of Antibiotics for PUD
-Nausea/diarrhea
-Drugs are expensive
-Hard to adhere to (have to take so many, many times a day, every day)
Histamine2 Receptor Antagonists
Blocks H2 receptors on parietal cells which:
-Suppresses secretion of gastric acid
-Reduces acidity of the acid

Oral/IV/IM, short half life
Also used for GERD and prevention of pneumonitis
Take H2 antagonists with food to ____________
SLOW absorption and make drug last longer
-Cimetidine (Tagamet)
-Ranitidine (Zantac)
Histamine2 Receptor Antagonists
Proton Pump Inhibitors
-Suppresses production of gastric acid (better than H2 receptor antagonists)
-Prodrug

-Enteric coated
-Inhibits 97% of stomach acid in 2 hours, effects persists
A/E of Proton Pump Inhibitors
-Persistent use may lower bone density (especially do not want this in children)
-Lowers absorption of Vitamin B12 from food (especially do not want this with vegans)
Actual definition of constipation
It's how hard the stool is, NOT how often
Constipation can be due to:
-Diet deficient in fluid/fiber
-Opioid use
Laxatives logistics
-Most overused over-the-counter drug
-Contraindicated with N/V, abdominal pain, acute post-surgery of the abdomen, bowel obstruction, PREGNANCY
Medical criteria for constipation (must have 2+ symptoms for 3+ months):
-<3 bowel movements/week
-Straining
-Hard stools
-Sensation of an obstruction
-Sensation of incomplete defecation
-Manual maneuvering required to defecate
Surfactant Laxative
Docusate, Colace
Surfactant Laxative MOA
Allows water to enter the stool (making it softer)
Decreases surface tension making stool easier to pass
Give with water
S/E with Surfactant Laxative
Rare and minimal; cramping that is relieved by passing stool
Bulk-forming laxative
psyllium (Metamucil)
Bulk-forming laxative MOA
Poorly-digested salts that draw water into the intestine which stretches the intestine and increases peristalsis

MEANT FOR OCCASIONAL USE ONLY
Stimulant Laxatives
bisacodyl (Dulcolax)
Stimulant Laxative MOA
-Stimulate motility of the gut
-PO takes 6-12 hours
-Suppositories takes 15-60 minutes
-CRAMPING but relieved when stool passes
cisapride (Propulsid)
"Prokinetic Agent"
-increases motility in upper GI
-Limites use in the U.S. due to severe adverse effects (cardiac)
cisapride (Propulsid) MOA:
-Serotonin 5-HT4 receptor agonist and a parasympathomimetic
Stimulation of serotonin receptors increases acetylcholine release in the nervous system
Laxative use and abuse
-Bad cycle: use them, evacuate whole bowel, don't go for several days, take them again because fear of constipation again
-Causes dehydration, electrolyte imbalance, unsustainable weight loss, bowel irritation
-Withdrawal of laxative to next stool can be several days
Elderly and laxative use
Most Abuse in this category
-Think of all the other meds they are taking that could cause anticholinergic effects
Laxative abuse among the young (eating disorders)
-Frequent pain
-Very modest sustainable weight loss
-Effects on sleep/social (due to frequency of needing to defecate)
-Harmful long-term consequences on bowel function
Emetic response is a reflex
Direct/indirect stimulation from the cerebral cortex
(D: Fears, upsetting sights/smells, pain, inner ear stimulation. I: Signals from stomach/intestines along vagal pathways, certain compounds)
Vomiting center of the brain:
Lower medulla
Serotonin Receptor Antagonists for Nausea
ondansetron (Zofran)
-Best one to use for anti-cancer/anethesia
-Oral or IV
Serotonin Receptor Antagonist MOA
Blocks 5-HT3 receptors in chemoreceptor trigger zone and on afferent vagal neurons in upper GI tract
A/E of serotonin receptor antagonists
-Headache
-Diarrhea
-Dizziness
Glucocorticoids for Nausea
dexamathasone (Decadron)
-IV
-MOA unknown
-few a/e if used in small doses only 1 or 2 times
Dopamine antagonists for Nausea
prochlorperazine (Compazine)
haloperidol (Haldol)
Dopamine antagonists MOA
Block dopamine2 receptors in CTZ
-a/e are anticholinergic, extrapyramidal, sedation
pregnancy category C
Mint for nausea
-Can eat in candy, tea, leaves
-Really effective at decreasing nausea, 1 cup every 2-3 hours post op is adequate
Salicylates
Aspirin-
NONSELECTIVE cox 1 and 2 inhibitor, but key therapeutic effects are inhibition of cox 2

-Rapidly absorbed, short 1/2 life, 80% protein bound
Low dose (baby) aspirin (81 mg)
pain relief and decreased coagulation
High Dose (650 mg in 2 tabs)
Decrease inflammation
Most adverse effects of aspirin come from inhibiting ______
cox 1
Most therapeutic effects come from inhibiting ________
cox 2
Therapeutic uses of salicylates
-Analgesics (joint/muscle/headache)
-anti-pyretic
-anti-platelet aggregation (8 days effect, irreversible)
Adverse effects of Salicylates (5)
-CATEGORY D, pregnant women should NOT use aspirin (unless previous babies have been lost due to clotting)
-GI distress
-Bleeding (especially occult)
-Renal impairment (especially in the elderly!)
-Tinnitus
Why children <18 yo should NOT take aspirin
Reye's Syndrome (20-30% mortality): high ammonia accumulation that leads to coma
If cannot take aspirin, also cannot take:
Other NSAIDs, other sulfa products, other selective cox blockers
Aspirin interacts with:
-Alcohol
-Glucocorticoids
-Anticoagulants
-Ibuprofen
-ACE Inhibitors (renal function)
NSAID prototypes
-ibuprofen (Motrin, Advil)
-naproxen (Naprosyn)
-ketorolac (Toradol)
NSAIDs
-Inhibit cox 1 AND 2
-Therapeutic use for mild-moderate pain
-MAY MASK A FEVER
A/E of NSAIDs
-Bleeding
-GI Ulcers
-Renal insufficiensy
-CNS problems
-Hypersensitivity
-Use lowest effective dose for shortest amount of time, do NOT use for MI/stroke prophylaxis
celecoxib (celebrex)
Selective cox 2 inhibitor
Selectively inhibiting cox 2:
Decreases the incidence of other a/e
-Less GI ulceration risk, but not eliminated
-LAST drug of choice for long term management of chronic pain because increased risk of stroke/MI
Acetaminophen (Tylenol)
-CENTRAL cox inhibitor, not at periphery
-Good for pain
-NO anti-pyretic properties
A/E of acetaminophen
-Rare at therapeutic doses (<4 grams/day)
-More than therapeutic range: liver toxicity!
-May increase the risk of bleeding if the patient is taking coumadin (due to DDI)
-Rare unless concurrent use with alcohol
Acetaminophen is 1 of 10 _________
prodrugs
Therapeutic use for acetaminophen
-FEVER and PAIN (not inflammation)
Overdose of acetaminophen:
Liver damage:
give acetylcysteine (mucomyst)--can prevent liver damage by binding to acetaminophen
Glucocorticoids--if given in high doses (10+ mg/day)
Treats disease processes unrelated to adrenocortical function:
-Asthma
-Inflammation
-Cancer
What dose do you give glucoroticoids?
The dose is HIGHLY INDIVIDUALIZED for each patient
-Trial and error
-Usually start with a high dose and then taper down to a dose that still treats symptoms
What do glucoroticoids do?
Slams down immune system that is reacting to something like cancer, asthma, inflammation
When should one take glucoroticoids?
Sometime in the morning, with food (stomach irritant) because the morning is generally when body makes its own cortisol naturally
MOA of glucoroticoids:
-More anti-inflammatory action than NSAIDs
-Suppresses synthesis of inflammatory mediators (leukotrines, histamine, prostoglandins)
-Suppress phagocyte activity
-Suppress proliferation of lymphocytes
Adverse effects when log-term, inhaled (for asthma or COPD)
-Oral fungal growth
-Decreased response to infection
-Impaired growth in children/teens
-Osteoporosis in elderly
Adverse effects of oral glucoroticoids:

(KNOW THIS LIST)
-Increases serum blood glucose (think diabetes and people who are already diabetic)
-Nausea
-Decreased bone density (osteoporosis)
-Gastric erosion (ulcers)
-Decreases potassium (heart dysrhythmias)
-Increases RISK for infection but decreases SIGNS of infection
Patients taking glucoroticoids need to be given __________ in cases of ____________
Need to be given additional doses in cases of stress.
What happens if glucoroticoids are suddenly withdrawn?
Adrenal atrophy: own body cannot make own adrenalcorticoids, so withdrawal can result in pain and death
Electrolyte balance while taking glucoroticoids:
-Retain NA (causes a lot of fluid retention, visible weight gain)
-Excrete potassium (may need to take potassium supplement
Psychological effects while taking glucoroticoids:
-Psychosis
-Euphoria that goes into depression
-Being weaned off glucoroticoids after long-term use can be horrible
If taking more than 40 mg of glucoroticoids, may have ______________
sleep disturbances
Compliance to glucoroticoids may be _________
Poor
Other uses of glucoroticoids:
-Arthritis
-Lupus
-Crohn's Disease
-Skin problems (eczema)
-Implants
-Organ transplants
-Cancer
Effect of glucoroticoids on metabolism:
-Alters glucose metabolism: raises blood glucose and promotes storage
-Affects protein metabolism: decreases muscle mass, thins skin
-Decreases bone density
-Makes fats breakdown and redistribute (moon face=Cushing's Syndrome)
Glucoroticoids (drug names)
Cortisone
Hydrocortisone
Prednisone
Betamethasone
Dexamethasone (Decadron)
Anti-Rheumatic Drugs (for Rheumatoid Arthritis)
DMARDs I: Methotrexate, Sulfasalazine
DMARDs II: (TNF antagonists) Etanercept
During a rheumatoid attack on the synovial tissue:
Mast cells, macrophages, and T lymphocytes produce CYTOKINES and cytotoxins which produce the inflammation-------this is what drug treatment is aimed at stopping
Rheumatoid arthritic treatment goals:
-releve pain and inflammation
-improve functioning of joints
-minimizing systemic involvement
-DELAYS PROGRESSION OF THE DISEASE

started EARLY after diagnosis, require very close monitoring, are very expensive
NSAID use use in RA
-Relieves pain temporarily (must use a very high dose)
-Does not prevent destruction
-Does NOT slow progression of the disease
-Gut destruction
Glucoroticoid use in RA
-Pain relief
-Can slow progression
-Long-term use is avoided due to serious a/e (used for FLARE-UPS only)
DMARDs for RA
-Reduces joint destruction and retards the disease progression
-Takes weeks to months to show benefits
-MORE TOXIC than NSAIDs
Methotrexate (a cancer drug) for DMARDs
-The fastest DMARD (takes 3-6 weeks to work)
-Immunosuppression--reduces activity of B & T lymphocytes
DMARD a/e
-Liver damage
-Bone marrow suppression
-Ulcers
-Pneumonitis
-Cancer
Requires routine testing:
-Liver enzymes
-CBC
-Creatinine & BUN
Sulfasalazine (Azulfidine)
-Anti-inflammatory and immunomodulatory
-Slows progression of immuno-diseases
Sulfasalazine (Azulfidine) a/e
-N/V/D, anorexia, abdominal pain
-Skin rash, pruritis
-Less risk of liver and bone marrow harms
-May turn urine and skin yellow/orange (damage to kidneys)
-Contraindicated in patients with allergy to sulfa drugs
May take _________ before benefits are felt
Months

Interferes with TNF, an important immune mediator of joint injury
LIve vaccines are __________ in DMARDs, must get caught up on vaccinations ________ to therapy
Live vaccines are contraindicated in DMARD use, must get caught up on vaccinations prior to DMARD therapy
DMARDs can reactivate ____________
Hepatitis B
Immunosuppressant drug:
Cyclosporine (Sandimmune)
Drug ineractions with Sandimmune
DFI: Grapefruit juice
Drug-drug interactions, many
Category C
Capsaicin
Essentially a chili pepper
-Interferes with pain transmission (changes sodium channels and calcium transport)
-Good for joint pain, muscle pain, or nerve pain
-Comes in multiple concentrations
Using Capsaicin
-WILL CAUSE burning sensation, reassure client that this is okay
-If applied for hand pain, apply and wash hands 30 minutes later
-May take 1-2 weeks to relieve the pain
-Effects may be sustained for up to 2 weeks
-Change concentration if too extreme, and wash hands
Drugs affecting calcium levels and bone mineralization
-Calcium
-Vitamin D
-Biophosphates: Alendronate
-Teriparatide
98% of calcium stored primarily in the ___________
Bone
Total serum calcium range:
9-10.5 mg/dL

-Varies with serum albumin; if serum albumin is altered, ionized (free) calcium is obtained
Calcium taken orally is __________ absorbed. _____________ with parathyroid hormone and vitamin D
Poorly (1/3)

Increased
Regulation of calcium (3):
-Absorption by intestines
-Renal excretion
-Reabsorption or deposit of calcium in bone
Needed for healthy bones (4):
-Calcium
-Vitamin D
-Parathyroid hormone
-Calcitonin
Treatment of osteoporosis:
Biophosphates:
Inhibit bone resorption
To prevent fractures and treat bone loss:
-Alendronate (Fosamax)
-Ibandronate (Boniva)
-Zolendronate (Reclast)

Plus calcium, vitamin D, and weight-bearing exercise
Alendronate (Fosamax)
-Must be taken on an empty stomach
-Take with a lot of water
-Remain upright for 30 minutes (due to risk of esophageal ulceration/irritation)
Vaccine
Whole or partial micro-organism that leads to antibody production
Live vaccine
-Dangerous to all immunocompromised people
-Contraindicated in all pregnant women
Avirulent vaccine
"Killed" vaccine
Toxoid:
Bacterial toxin that has been rendered nontoxic: leads to antibodies to the bacteria
Immunization
Active: long-duration, last weeks-months


Passive: manufactured antibodies, last as long as the antibodies are viable
Compliance with Immunizations
Very poor in the U.S, especially in WA state (highest opt-out rate)
Vaccine myths: corrected
(read only)
-Vaccines do not cause autism
-Vaccines do not cause diabetes
-Giving too many vaccines does not overwhelm a child's immune system
-Diseases are still a threat, so it is still necessary to get vaccines for them
-Medical personal are all in agreement that vaccines are safe, effective, and necessary
-There is not enough aluminum in vaccines for them to be harmful
-Unvaccinated adults are still susceptible to diseases
Common mild reactions to vaccines:
-Redness
-Soreness
-Fever
-Discomfort
Serious reactions to vaccines:
-Anaphylaxis
-Encephalopathy
What to do in the case of an egg allergy:
Follow the algorithm
All immunizations require _______________
Consent
Give ___________ to all persons getting vaccinated
VISs
___________ vaccines are contraindicated in pregnancy
Live
List of live vaccines:
MMR
Varicella
Rotavirus
Intranasal for seasonal flu (IM flu vaccine is NOT live)
Zoster (for shingles)
Injectable vaccines can be either _____ or ______
SQ or IM
Time sensitive vaccines:
-Pneumococcal vaccines for those 65+
-Zoster (shingles) vaccine for those 60+ (or with respiratory disease)
Seasonal Influenza Vaccine
-IM=inactivated virus
-Intranasal mist=live virus
-Mild flu-like a/e but does NOT give you the flu
-Everyone over 6 months should be vaccinated (especially pregnant women, and healthcare workers)
Cancer--Primary difficulty in treatment:
The effect of the drug on normal fast-growing cells
Solid tumor growth vs. "liquid" tumor growth:
Solid tumors grow much slower. "Liquid" meaning leukemia for example
Most cancer drugs NONSPECIFICALLY affect high growth fraction cells:
-Hair
-GI epithelium (mucous membrane) cells
-Bone marrow cells (Red, white, and platelets)
-Sperm forming cells
In order to eradicate cancer, must ____________:
Kill EVERY single cancer cell, meaning that doses of cancer drugs must be consistently high, even if there is less cancer!
Additional issues with cancer
-General body immune defense does not help much
-Tumors usually have multiple types of cells, and patient usually has multiple types of tumors
-Hard to know for sure when ALL cancer cells are killed
-Risk of failure increases with each treatment attempt
Treatment is often surgery first, then drug/radiation treatment because:
Tumors can be hard to get at
Intermittent drug therapy is done when:
Normal cells grow faster than cancer cells
Combination drug therapy:
-Generally more efficacious than a single drug
-Overall more adverse effects, but dosages are lower so its less lethal
Vesicant potential:
Give through PICC line, or if given in injection monitor CLOSELY for a while
Cancer drugs are carcinogenic
No fair!
Can appear years later, with different cancer entirely
If planning to have children post-chemotherapy:
Sperm/egg bank prior to treatment
Adverse GI effects of cancer drugs:
Nausea/Vomiting/Extreme Diarrhea

Premedicate using antiemetics (Zofran, ondansetron), antidepressants, Marijuana, diet supplements (high [ ] of calories because eating is unpleasant)
(Most serious effect:) Bone marrow suppression causes:
Decreased RBCs
Decreased WBCs
Decreased Platelets
Decreased WBC production:
Danger: will not be able to adequately fight infections, only sign of infection shown will be fever
-Teach patient to prevent infection by hand washing, avoiding crowds & contact, be vigilant about noticing signs of fever (taking temperatures at home)
filgrastim (Neupogen):
For treatment of decreased WBCs
-May experience nausea
-May be hypersensitive to this
oprevelkin (Neumega):
For treatment of decreased platelets
-May be hypersensitive to this

Teach patient to NOT use NSAIDs/anticoagulants, monitor for bleeding (in stool, urine, bruises, on toothbrush), use a soft toothbrush
Common hair loss with many cancer drugs:
-Common cause with refusing treatment
-Support by making a plan/getting a wig before treatment
Cancer drugs are teratogenic and mutogenic:
-Important to use contraceptives during treatment
-Bank sperm/ova prior to treatment
Handling of cancer drugs can be very dangerous:
-Can aerosolize
-Must consistently use gloves, gown, eye/face protection
Cytotoxic drugs:
Most common category used, kills cancer cells directly

-Antimetabolites (methotrexate)
-Alkylating (cytoxan)
-Antitumor antibiotics (streptomycin)
-Miotic inhibitors (vincristine)
Vincristine:
Spares bone marrow, but neuropathies


Be careful: Vincristine vs. Vinblastine
Hormones and hormone antagonists/blockers
-Least toxic cancer treatment
-More selective
-Use for cancers that are supported by hormones
Examples of hormones and hormone antagonists/blockers
Glucocorticoids: given for leukemias, Hodgkins, Lymphomas
Estrogen Inhibitors:
-Antiestrogens/SERMs (Tamoxifen): block estrogen receptors. Used for breast cancer, but a/e can be uterine cancer, thrombophlebits, DVT.
-Aromatase Inhibitors--only for post-menopausal women
Aromatase Inhibitors:
Act by stopping certain hormones from turning into estrogen.
Tamoxifen:
Blocks estrogen receptors on breast cancer cells, so estrogen is still present for the rest of the bodily functions but the tumor cannot get enough of it to grow
Anti-androgens:
Suppresses androgen production for prostate cancer
Progestin:
Depo-provera to suppress uterine cancer
Most important ingredient in drug therapy:
HOPE.

Don't forget about placebo effect!
Normal adult female hamatocrit:
36-46%
Normal adult male hamatocrit:
41-53%
Normal newborn hamatocrit:
49-61%
Normal adult female hemoglobin:
12.0-16.0 g/dL
Normal adult male hemoglobin:
13.5-17.5 g/dL
Normal newborn hemoglobin:
14-20 g/dL
Normal RBC range:
Male: 4.7-6.1
Female: 4.2-5.4
Normal WBC range:
4,500-10,000
Normal platelet range:
150,000-400,000
acetylcystein (Mucomyst)
Reversal drug for acetaminophen