Part 1, Set 1 Flashcards

1
Q

Time frame for hyperacute, acute, and chronic transplant rejection

A

hyperacute: within minutes
acute: weeks
chronic: months to years

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2
Q

Immunologic response for hyperacute, acute, and chornic transplant rejection

A

hyperacute: HSR II –> preformed antibodies
acute: cellular –> CD8+ against donor MHC
chronic: cellular –> CD8+ respond to foreign MHC as self MHC presenting non-self antigen

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3
Q

Treatment for digoxin toxicity

A
  • normalize Na and Mg serum levels
  • anti-dig Fab fragments
  • bradycardia –> atropine
  • arryth –> ACLS guidelines
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4
Q

Vanco as treatment for…

A

GRAM + ONLY
MDRO (multi drug resistant organisms) such as:
MRSA
enterococcus

2nd line (oral) for clostridium difficile

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5
Q

How does vancomycin resistance develop?

A

D-ala-D-ala to D-ala D-LAC***

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6
Q

Do atypical antipsychotic primarily address negative or positive symptoms of schizophrenia?

A

BOTH

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7
Q

Typical antipsychotics MOA and treat sx

A

block D2 Rec –> increase cAMP –> treat POSITIVE SX

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8
Q

Atypical antipsychotics MOA and treat sx

A

block D2 Rec AND OTHERS: 5-HT, alpha, H1 receptors –> treat POSITIVE and NEGATIVE SX

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9
Q

Positive sx of schizophrenia

A

delusions
hallucinations (auditory)
disorganized speech
disorganized catatonic behavior

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10
Q

Negative sx of schizophrenia

A

flat affect
social withdrawal
lack motivation
lack speech/thought

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11
Q

Which sx of schizophrenia are easier to treat?

A

positive

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12
Q

When need to change loading dose and/or maintenance dose?

A

if liver or renal dizease –> decrease maintenance dose only, loading dose unchanged

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13
Q

What substances compose the matrix of the bone?

A

organic matrix 30%
collagen, chorndroitin sulfate, hyaluronic acid

crystalline salts 70%
calcium, phosphate, hydroxyapatite

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14
Q

What can hydroxyapatite conjugate to?

A

Mg, Na, K, HCO3, strontium, uranium, plutonium, lead, gold, heavy metals

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15
Q

K+ sparing diuretics mneumonic

A

“K, take a SEAT!”

S - spironolactone
E - epipleronone
A - amiloride
T - triamterene

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16
Q

MOA of spironolactone and epipleronone

A

inhibit aldosterone

17
Q

MOA of amiloride and triamterene

A

inhibit Na+ channel (ENac) in coritcal collecting tube

18
Q

SE of K+ sparing diuretics

A
  • hyperkalemia (hiker banana)
  • gynecomastia
  • irregular menses
19
Q

NO vasodilates which vessels

A

VEINS&raquo_space;> arterioles

20
Q

hydralazine vasodilates which vessels

A

arterioles > veins

21
Q

Why give NO and hydralazine together for angina?

A

NO decreases preload
hydralazine decreases afterload

= decrease angina

22
Q

What are risk factors for cholesterol gallstones?

A

4 Fs: fat, fertile, female, forty

obesity, pregnancy, age, estorgen (F)

*also, crohns, clofibrate, estrogen tx, multiparity, rapid weight loss, Native American

23
Q

Risk factors for pigment gallstones?

A

chronic hemolysis
alcoholic cirrhosis
advanced age
biliary infection

24
Q

35 with MS presents with internuclear ophthalmoplegia, what is it?

A

MLF syndrome!
Conjugate horizontal gaze palsy!

medial longitudinal fasciculus connects/communicates the CN VI (ipsilateral) and CN III (contralateral) nuclei to allow gaze

25
Q

CN VI eye muscle

A

abducens

LR

ipsilateral

26
Q

CN III eye muscle

A

oculomotor

MR

contralaterl