Esquivel Flashcards
Management for pt with Inferior wall ST elevations, JVD, parasternal lift, and clear lungs? Management?
MI with RV involvement
- Preload dependent - give fluid (lung crackling suggests too much)
- Give pressors if hypotensive
If pt with RV MI is fluid overloaded (crackles) but hypotensive - consider these causes?
- papillary muscle ischemia/rupture
2. Arrhythmia
Pylonephritis with hypotension - management?
- Goal-directed therapy - CVP 8-12; MAP>65
Septic shock pt with LV CHF - management?
Fluid until wedge pressure = 20
Treatment for CHF exacerbation?
L-M-N-O-P Loop diuretic (Lasix) Morphine (venous vasodilator) Nitroglycerin O2 Position (sit up)
Lasix - MoA? How does it to site of action?
Blocks Na-K-2Cl transporter
Transporter through the Organic Ion transporter in PCT
CHF with BP 160/90, pulse 110, BUN 35, Cr 1.2 - management?
Lasix
CHF with BP 160/90, pulse 110, BUN 60, Cr 2.3 - management?
- Increasing doses of Lasix (Prerenal azotemia suggests low GFR - to get lasix into kidney, need to increase dose)
- Metolazone (thiazide to prevent distal Na resorption; should be given before lasix)
CHF with BP 160/90, pulse 110, BUN 80, Cr 6.0 - management?
Increase C.O. with dobutamine or milrinone
CHF with BP 85/40, pulse 110, BUN 80, Cr 6.0 - management?
Dialyze
Milrinone - MoA?
inotropic vasodilator - inhibits cAMP PDE in cardiac and vascular tissue
Hypovolemia with met acidosis - tx?
1) Lactate
2) NS with amps (50 mEq) of Bicarb
Lactate - why does it good for metabolic acidosis? Will not work if?
Lactate -> pyruvate -> Ox Phos -> increases CO2 produced -> CO2 made into more Bicarb
Liver failure
vomiting leading to Met Alk - why hypoK? tx?
Low volume increases ALDO - increased K excretion
Tx: NS
Urine Cl should be?
10
Met Alk - after NS, increased urine excretion of?
Na (gets dragged out with bicarb)
Saline Responsive Alkalosis
Loss of Cholride
- Vomiting
- Diuretics (Volume contraction)
- Posthypercapnia
- CF
Saline unresponsive alkalosis
- Primary Renin/ALDO
- Bartter/Liddle
- CHronic K depletion
- Milk-alkali
When is Urine Na a poor indicator of volume?
- Diuretics
- Met Alk
- Renal Salt Wasting
Low TSH, normal T4, normal T3?
Subclinical hyperthyroidism
Causes of hyperthyroidism (uptake seen on thyroid scan)?
- Graves’ disease (diffusely increased)
- Surreptitious thyroid intake (normal/low)
- Thyroiditis (decreased)
- Toxic multinodular goiter (focally increased)
- Non-thyroid illness
How to distinguish between surreptitious thyroid injection versus thyroiditis?
Increased thyroglobulin versus decreased thyroglobulin
Low TSH, low T3, low T4?
Hypothyroidism due to hypopituitarism
Pretibial myxedema seen with?
Hyperthyroidism
Why retain water with hypothyroidism?
Low T3/T4 stimulates pituitary increasing both TSH and ADH
Worst complication of hypothyroidism? Tx?
Myxedema coma
IV levothyroxine, IV hydrocortisone, empiric antibiotics
Low TSH, high T4, low T3?
Sick euthyroid
Normal TSH, low T3, normal T4
Version of sick euthyroid: low T3 syndrome
Patient with proptosis or tibial myxedema – treatment?
Steroids – neither will go away with anti-thyroid medications
Treatment for patients in thyroid storm?
- nonselective beta blocker (Propranolol)
- PTU
- Potassium iodine
- Dexamethasone/glucocorticoids
- Cholestyramine