Hypertension (25.9.2013) Flashcards
Drug of choice for hypertensive emergency
sodium nitroprusside
When does sodium nitroprusside therapy lead to cyanide toxicity
infusion for 48-72 hrs
renal insufficiency
Features of thiocyanate toxicity
paresthesias,tinnitus,blurred vision,delirium or seizures
Nitroglycerin should be avoided in pts with
Inferior wall MI
DOC for hypertensive emergencies in pregnancies
Labetolol
situations in which labetolol is beneficial
Conditions of adrenergic excess
Clonidine withdrawal
pheochromocytoma
Post coronary bypass grafting
Half life of labetolol
5-8 hours
role of parenteral esmolol in Hypertension
aortic dissection,used along with nitroprusside
Parenteral agent used in postoperative hypertension
Nicardipine
role of fenoldopam
High risk hypertensive surgical patients
Drug used in hypertensive urgencies as oral loading
clonidine
toxicity of nitroprusside in liver failure
cyanide toxicity
Dosage of nitroglycerin
5-250ug/min
Goal in hypertensive emergency
20-25% reduction of MAP or reduction in DBP to 100 or 110mm HG
When should treatment of hypertension in pregnancy begin
when DBP is >100 mm Hg
For whom does BP classification apply
adults overs 18 yrs of age,not on antihypertensives,not acutely ill
acute withdrawal syndrome in hypertension is associated with use of which drugs
Centrally acting adrenergic agents particularly clonidine
betablockers