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Flashcards in Big Red Deck (22):
1

Why is metoclopramide contraindicated in pheochromocytoma

It can cause release of catecholamines from the tumor

2

Folate and B12 deficiency causes what type of anemia

Hypochromic, macrocytic anemia

3

Most frequent cause of digitalis toxicity

Renal failure, other causes include: hypokalemia, hypothyroidism, hypomagnesemia, hypercalcemia

4

Accepted minimal stump pressure in carotidendarterectomy (CEA)

> 50 mmHg

5

Hallmark of sodium nitroprusside (SNP) toxicity

Unexplained metabolic acidosis caused by cyanide toxicity

6

Treatment for metabolic alkalosis

Carbonic anhydrase inhibitor like acetazolamide

7

Which beta blocker acts in concert with insulin to potentiate hypoglycemia

Propranolol (inderal)

8

Hyperaldosteronism leads to what acid/base status and what electrolyte imbalance

Metabolic alkalosis and hypokalemia, because H+ and K+ ions are lost in urine while Na and H2O are reabsorbed in distal convoluted tubules and collecting ducts

9

Problem with phenoxybenzamine that has led to use of other agents?

Reflex tachycardia which is limited in newer agents like doxazosin, terazosin, and prazosin

10

Which lasers cause cornea damage and which cause retinal damage?

CO2: cornea
Ruby, helium, argon: retina

11

Hemoglobinopathy that is characterized by chocolate colored blood and urine

Methemoglobinemia

12

Elective surgery should be cancelled if diastolic BP is greater than?

110 mmHg

13

Why is dobutamine used instead of adenosine for cardiac stress testing

Adenosine can cause reactive bronchospasm

14

Maternal mortality in pregnant women with Eisenmenger's syndrome

30-50%

15

What is cobb's angle?

Scoliosis assessment. >60 degrees is associated with decreased pulmonary fxn. >100 degrees predicts severe cardiac and respiratory dysfunction

16

3 major problems associated with scoliosis

Restrictive lung disease, Cor pulmonale, mitral valve prolapse

17

Advantages of LMWH over unfractionated heparin

Can be given at home, no lab monitoring, longer half life, more predictable anticoagulant response, less HIT.

18

3 main side effects of cyclosporin

Nephrotoxicity, hypertension, prolonged neuromuscular blockade

19

Mechanism of action for cyclosporin

Inhibits T-lymphocyte mediated immune response

20

Irreversible hemorrhagic shock occurs with what percent of blood loss?

40%

21

Multiple sclerosis (MS) has what effect with nondepolarizing muscle relaxants

Resistance to non depolarizers

22

Most significant anesthetic concerns regarding sarcoidosis

Inflammatory granulomatous disease affects all organs but importantly restrictive lung, liver dysfunction, cardiac arrhythmias, peripheral neuropathies