Pharm- Autonomic Flashcards
List catecholamines and where they’re produced
Epinephrine, Norepinephrine, Dopamine
produced/released by adrenal glands
Large doses of catecholamines can produce which CNS effects
anxiety, tremors, HA
Catecholamines work on the smooth muscle of the GI tract to (contract or relax)
relax smooth muscle
Net effect of alpha and beta receprots:
vasoconstriction and cardiac stimulation
Norepinephrine selectively activates:
effect on vasculature:
activates α1 over α2 and ß1 and little effect on ß2
↑BP, ↑peripheral resistance
Which neurotransmitter is used in the treatment of shock with renal failure?
Dopamine
(precursor to NE)
Effect on NE of sympathomimetic drugs:
release stored NE or inhibit reuptake
(amphetamine, cocaine, ephedrine)
OTC cold remedies may contain phenylephidrine, which can cause which AE:
Hypertension, cardiac arrhythmias, angina
Aldosterone is produced in the adrenal cortex, and it will have what effect on sodium in the kidneys, which will do what to plasma volume?
conserve sodium, increase plasma volume
Prostaglandins counteract vasoconstriction in the kidneys. What do NSAIDs do to prostaglandins?
NSAIDs inhibit prostaglandin synthesis: can lead to renal faiulre and exacerbate HTN in those with cirrhosis, heart failure, etc.
This class of diuretic works on the ascending loop of Henle to keep electrolytes from being reabsorbed, and includes furosemide.
Loop diuretics
AE: dehydration, hypokalemia, hyponatremia, hypocalcemia, ototoxicity, hyperglycemia, increased LDLs
What diuretic class is used for those who are at risk of renal calculi, and does not have the risk of bone density loss?
Thiazide
hydrochlorothiazide (Microzide)
Which class of diuretic can result in hyperkalemia, gynecomastia or menstrual irregularities (as well as nausea, lethargy, mental confusion)
Potassium sparing diuretics
spironolactone (Aldactone)
Flattened T waves, nausea, muscle weakness, fatigue, leg cramps, polyuria, hypotension, excessive sweating, mental status change all may indicate:
Hypokalemia
Diuretics can cause which 2 conditions that can both trigger arrhythmia, syncope, and cardiac arrest?
Hyperkalemia, hypokalemia