sim ex 1b Flashcards

1
Q

Krukenberg tumor

A

metastatic adenocarcinoma in the ovary

most likely from stomach

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2
Q

treatment for diabetic gastroparesis

A

metoclopramide

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3
Q

cyanide

A

binds the ferric iron in cytochrome oxidase (Complex IV)

–> smell of burnt almonds on breath

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4
Q

clozapine

A

atypical antipsychotic that blocks D4, 5-HT2, muscarinic and alpha-1 receptors
effective at treating the negative symptoms of schizophrenia and is used in patients unresponsive to traditional therapies
associated with the development of severe antimuscarinic effects, agranulocytosis, neuroleptic malignant syndrome, tardive dyskinesia, and cardiac arrest

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5
Q

thin, gray vaginal discharge with positive whiff test

A

gardnerella vaginalis

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6
Q

“the old man who smokes and drinks and has rotten teeth,” prime candidate for

A

squamous cell carcinoma of the head and neck mucosa

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7
Q

foot drop and high-stepping gait are caused by damage to what nerve?

A

deep peroneal

arises from common peroneal and innervates the anterior muscles of the leg

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8
Q

histrionic personality disorder

A
conspicuous seeking of attention
consciousness of appearance
dramatic presentation
multiple unstable relationships
acting without thinking
making rash decisions
unexpected sexual overtones
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9
Q

taking exogenous androgens –>

A

negative feedback to reduce GnRH

  • -> decreased LH and FSH
  • -> decreased testosterone production in Leydig cells, testicular atrophy
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10
Q

equation for MAP

A

COxPVR

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11
Q

Amiodarone

A

class III antiarrhythmic agent, prolongs myocardial cell action potential during the refractory period

used in the treatment of refractory ventricular tachycardia and supraventricular tachycardia

associated with thyroid dysfunction, paresthesias, pulmonary fibrosis, cardiac arrhythmias, and heart failure

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12
Q

pseudomonas aeruginosa

A

gram-eg
encapsulated
contaminates burns

DIC via endotoxin (LPS in outer membrane) that activates acrophages to overproduce IL-1, IL-6, and TNF-alpha

also produces exotoxin A (inhibits protein synthesis by ribosylating eukaryotic elongation factor-2)

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13
Q

thiazide diuretics and urine flow rate

A

thiazide diruretics decrease urine flow rate by increasing reabsorption of solutes and water from the proximal tubule.

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14
Q

stuff that goes with Marfan

A

mutation in FBN-1 (codes fibrillin-1)
fibrillin-1 helps elastin organize into elastic fibrils
elongated bones, lens dislocation (suspensory ligament weakness), AORTIC ROOT dilation,

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15
Q

stuff that goes with Tay-Sachs

A
deficiency of hexosaminidaseA
lysosomal storage disease
Ashkenazi Jews
GM2 accumulates in CNS
weakness, retardation, blind, die by 3
cherry-red spot on the macula

increased GALACTOCEREBROSIDE

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16
Q

malignant hyperthermia results from … and can be fixed by…

A

succinylcholine, halothane, and isoflurane can cause it

dantrolene (blocks the Ryanodine receptor, prevents release of Ca 2+ from sarco retic) can reverse it

17
Q

trimethaphan

A

ganglionic blocker

baroreceptor reflex would be blocked