pharm final Flashcards
3 types of names every drug has?
Chemical, generic, and trade
The term used to describe when one-half of the original amount of a drug has been removed from or inactivated in the body
half-life
The study of drugs and their interactions with living systems?
Pharmacology
The best route to get 100% bio-availability
IV
The physiologic reason why you must give 6.5mg of nitroglycerin orally to get the same effect as 0.15mg sublingually?
The first pass effect
Other than pain, the most important nursing assessment to make prior to administering morphine?
respiratory rate / respirations
Primary organ damages as a result of acute acetaminophen toxicity?
Liver
Fentanyl (Duragesic) patches are typically changed at this frequency
72 hours or 3 days
Other than nausea, the most common GI side effect of opioids?
Constipation
Drug of choice for reversing opioid-induced respiratory depression?
Naloxone (Narcan)
Primary neurotransmitter of PNS?
acetylcholine
Effects of an Alpha-1 agonist on blood vessels?
Vasoconstriction
Have a short duration of action, cannot be given orally, and do not cross the BBB?
Catecholamines
Drug of choice for cholinergic crisis?
Atropine
What each of the letters in the acronym SLUDGE means?
INCREASE Salivation Lacrimation Urination Diarrhea GI motility/secretions Emesis
The prototype loop diuretic
Furosemide (Lasix)
Of hydrochlorothiazide and spironolactone, the one that you dont have to encourage increase intake of potassium with?
Spironolactone
Prototype osmotic diuretic used to treat cerebral edema?
Mannitol
According to JVC VII quidelines, this is the first drug or classification of drugs of choice to treat hypertension without other compelling indicators
Hydrochlorothiazide or the thiazide diuretic
Effects of aldosterone on NA+, H2O, and K+
Retention of Na+ and H2O; promotes excretion of K+
The organ at risk for toxicity when doxorubicin (Adriamycin) is admnistered?
Heart (cardiotoxicity)
Most common class of lipid lowering agents; unexplained muscle aches should be reported.
Statins
Antidote for Warfarin (Coumadin)
Vitamin K
Primary side effect of the fibrates-lipid lowering agents
Gall-stones
Primary side effect of the bile acid sequestrants-lipid lowering agents
Constipation
Used to treat viral infections as well as Parkinson’s disease
Amantadine (Symmetrel)
Anti-epileptic agent that commonly causes gingival hyperplasia with long term use
phenytoin (Dilantin)
Naturally occuring precursor of dopamine that does cross the BBB?
levodopa
A newer anti-epileptic drug approved only for adjunctive therapy of partial seizures; also used as an adjuvant to treat neuropathic pain.
gapapentin (Neurotin)
This group of drugs was once used commonly for depression, but are used less frequently now due to the risk of fatal cardiac dysrhytmias with an overdose?
Tricyclic antidepressants
A powerful analgesic, but minimal anti-inflammatory actions; offers pain relief equivalent to opioids; indicated for short term used only - 5 days
ketorolac (Toradol)
Drug proven successful in preventing gastric ulcers associated with NSAIDS use
misoprostol (Cytotec)
The effects on platelet coagulation of a nonselective COX inhibitor
decrease
The only COX 2 selective inhibitor still available
Celecoxib (Celebrex)
Three primary effects of COX 1
- Protection of gastric mucosa
- Supports renal function
- Promotes platelet aggregation
What the BODY does the drug?
Pharmacokinetics
What the DRUG does to the body?
Pharmacodynamics
Duration of action of drugs that are tightly protein bound?
Long
Delivery of action of drug that are tightly protein bound?
Distribution
What are ALT and AST?
Liver enzymes
Results of nonselective beta 2 agonist on the lungs?
Bronchodilation
What Alpha 2 agonist inhibit the release of this catecholamine?
Norepinephrine
Word used to describe effects on contractility on the heart?
inotropic
Class of drugs used to treat hypertension, angina, HF, migraine, HA, and stage fright?
Beta Blockers
Another word used to describe drugs that mimic the effects of the SNS?
Sympathomimetics
Number of half-lives it takes to reach steady state?
4
The major dose-limiting factor for interferon therapy?
Fatigue
Rationale for giving pyridoxine alone with isoniazid (INH)
Prevention of peripheral neuropathy
The only category of laxative that is safe for long-term use?
Bulk-forming laxative
Labs that must be monitored when administering cyclosporine?
BUN and Creatinine
An electrolyte imbalance that increases a client’s risk for digoxin toxicity
hypokalemia
Nitrates should not be taken concurrently with drugs used for erectile dysfunction because of risk of what?
Dangerous hypotension
The potassium sparing diuretic given to nearly all clients with HF?
spironolactone (Aldactone)
Reason why ACE inhibitors are believed to be a good choice for BP control in diabetic clients?
renoprotective qualities
A chronic cough can be a troublesome side effect of this class of antihypertensives?
ACE inhibitors
Target goal of hemoglobin A1C in diabetic clients?
6.5-7.0
Onset of action (in minutes) of lispro (humalog) insulin?
5-15 minutes
Type of insulin typically referred to as basal insulin?
Lantus and Levemir
Lab value that should be monitored following any type of “dye” procedure when a client takes metformin?
creatinine
Hypoglycemia symptoms include?
HA, confusion, drowsiness, fatigue, and feeling hot (flush)
Effect of antihistamine on the blood vessel?
Vasoconstriction
Common problem with overuse of nasal decongestion?
rebound congestion
An anticholinergic inhaler used for bronchodilation?
ipratropium (atrovent)
Rationale for using corticosteroids for respiratory disorders such as asthma? How do they help?
Provide potent anti-inflammatory effects
Cross-sensitivity can occur with PCN allergy and this group of antibiotics?
cephalosporins
Classification of antibiotics commonly used to treat urinary tract infections because of its high concentration in the kidneys?
sulfonamides
Two organs of increased risk of toxicity for clients receiving aminoglycosides?
kidneys and ears
This should be avoided when a client is receiving metronidiazole (Flagyl)?
Alcohol
The word used to describe an infection caused by large doses of antibiotics that kill the normal flora?
super/suprainfection
The lab value that must be monitored frequently when administering clozapine (Clozaril)?
WBC count
What are the 2 types of chemotherapy agents?
- Cell cycle specific
2. Non cell cycle specific
(T/F) Chemotherap drugs are more effective to cells that have a high growth fraction (Rapid proliferation).
True. Sounds like this is a good thing but really means its hard to get ahead of the growth
What is the implication to chemotherapy drugs having a low therapeutic index?
The low therapeutic index is dose limiting. There is a fine line between therapeutic levels and toxic levels.
What is Nadir?
The lowest level of WBC following chemo treatment
What percentage of malignant cells must be killed for a cancer to be “cured”?
100%
Why is there a poor response to chemo from solid tumors?
They typically have a low growth fraction and so they are less responsive to cytotoxic drugs
They typically have a low growth fraction and so they are less responsive to cytotoxic drugs?
Solid tumors
Wear gloves when handling the drug
What are the obstacles to successful chemotherapy?
- Toxicity to normal cells
- Nadir- can require interruption to scheduled chemotherapy.
- Cure requires 100% of malignant cells to be killed.
- Absence of early detection
- Poor response of solid tumors
- Drug resistance
What are the general toxicities of chemotherapy
- Bone marrow suppression
- Digestive tract injury
- Alopecia
- Reproductive toxicity
- Hyperuricemia (increased blood uric acid)
- Local injury from extravasation
What are the results of bone marrow suppression?
- Neutropenia
- Thrombocytopenia
- Anemia
What digestive tract injuries are caused by chemotherapy?
- Stomatitis- inflammation of the stoma (oral cavity-mouth)
- Diarrhea
- Nausea/vomiting
What do antimetabolities, folic acid antagonism do?
Inhibit formation of folic acid which is needed for cell reproduction
What is Methotrexate? What is the antidote for it?
- A common folic acid antagonism drug
2. Leucovorin
What type of drugs are toxic only to cells that are passing through a particular phase of the cell cycle?
cell Cycle-Specific Antineoplastic Drugs
What are purine antagonism used predominately used for?
Leukemias and Lymphomas
What do Mitotic inhibitors do?
Each drug inhibits mitosis in some way.
What is a critical administration issue for Vincristine?
It must NEVER be given intrathecally (directly into spinal canal)
What type of drug is paclitaxel (Taxol)?
A chemotherapy drug
What is a nursing consideration for cisplatin (Platinol)? Why?
Requires extensive hydration to minimize risk of neprotoxicity