Hypotension triggers Flashcards
hand clenching, leg crossing and leg muscle flexing used to treat what
physical maneuvers for tx of orthostasis (orthostatic hypotension)
increases peripheral vascular resistance, therefore increasing BP
midodrine
does not cross blood brain barrier
midodrine
does not generally present with fatigue, nausea, or confusion
orthostatic hypotension
also POTS
is there a drop in BP with POTS
NOOOOOOO
MC in young female pts
POTS
caused by neurodegenerative diseases such as parkinsons
orthostatic hypotension
caused by neuropathies as result of DM, B12 deficiency, amyloidosis, sarcoidosis, or Lyme disease
orthostatic hypotension
SE: edema, supine HTN
fludrocortisone
also:
hypokalemia
SE: hypokalemia
fludrocortisone
also:
edema
supine HTN
must be dosed TID due to short half life
midodrine
hypotension leading to poor perfusion and end-organ damage
cardiogenic shock
elevated troponin or CX-MB
recent/acute MI indication
what is the criteria for orthostatic hypotension
A 20 mmHg fall in SBP
OR
A 10 mmHg fall in DBP
after standing from a lying position
elevation in serum Cr, AST, and ALT
indications of hepatic and renal hypoperfusion
initial evaluation includes:
CBC
CMP
EKG
TFTs
POTS
start at .1mg and titrate up every week until you get to .3mg
fludrocortisone
increases sodium reabsorption and potassium excretion in distal tubules
fludrocortisone
mineralcorticoid with high glucocorticoid activity
fludrocortisone
SE: piloerection, GI effects, urinary retention or urgency
midodrine
also see:
supine HTN
paresthesias
pruritus
SE: supine HTN, paresthesias, pruritus
midodrine
caused by impairment of autonomic reflexes or volume depletion
orthostatic hypotension
alpha 1 selective andrengeric agonist
midodrine
2.5 mg TID then titrae to 10 mg TID for desired response
midodrine
BB, SSRI, SNRI, Midodrine, fludrocortisone
POTS pharm tx
what medication classess can cause orthostatic hypotension
coagulation abnormalities and anion gap acidosis suggests what
hepatic congestion or hepatic hypoperfusion
also see:
elevated serum lactate
elevated serum lactate indicative of what
hepatic congestion or hepatic hypoperfusion
also see:
coagulation abnormalities
anion gap acidosis
lifestyle changes includes aerobic exercise for lower extremities
POTS
after starting this medication, youll want to get a BMP
fludrocortisone d/t hypokalemia
what is the possible etiology of POTS
Distal denervation
Hypovolemia
Venous dysfunction
Cardiovascular deconditioning
Baroreflex abnormalities
Increased sympathetic activity
Genetic abnormalities
BIG D CHV