Test 50 Flashcards Preview

Step 1 > Test 50 > Flashcards

Flashcards in Test 50 Deck (55):
1

forms from the dorsal pancreatic bud

body, tail and most of head

2

forms from the ventral pancreatic bud

precursor of uncinate process
inferior/posterior portion of head
MAJOR pancreatic duct (of wirsung)

3

failure of dorsal and ventral pancreatic buds to fuse

pancreas divisum> pancreatic ductal systems remain separate w/ acessory duct draining majority of pancreas

4

glutamate residues of some proteins newly synthesized in the infants liver fail to be carboxylated.

Vit K

5

causes majority of DS

nondisjunction during meiosis I

6

Septic arthritis tx

immediate Ab tx w/ ceftriaxone

7

site that binds to the Fc receptors on neutrophils/mphages

Fc portion of heavy chain Ig

8

site for attachment to Ag

FAB

9

Afferent limb of light reflex pathway

optic nerve

10

efferent limb of light reflex pathway

PNS fibers of CN3

11

Damage to optic nerve> rxn to light?

light in eye that has damaged nerve will cause NEITHER pupil to react, but light in contralateral eye will cause both pupils to conract

12

Damage to optic nerve> rxn to light?

light in eye that has damaged nerve will cause NEITHER pupil to react, but light in contralateral eye will cause both pupils to conract

13

Pneumonia that rapidly clumps in the cold and uncoagulates in warmth

Mycoplasma

14

cold agglutinins

Abs specific for RBCs that cause agglutination/clumping of RBC at low temps

15

cold agglutinins

Abs specific for RBCs that cause agglutination/clumping of RBC at low temps

16

what else can cause cold agglutinins

EBV
hematologic malignancy

17

Jaw pain that starts in the middle of a meal

temporal arteritis

lumen of arteries narrow and can't responsd to increased blood requirement during meal

18

used to dx pts w/ temporal arteritis

confirm dx

ESR

temporal artery biopsy

*corticosteroid tx to prevent vision loss

19

after onset of severe ischemia leading to MI, how long does it take for signs of coagulative necrosis to become apparent?

4 hrs after ONSET of MI

20

0-4 hrs after MI

minimal change

21

coagulation necrosis
edema
hemorrhage
wavy fibers
Neutrophils appear

4-12 hrs after MI

22

coagulation necrosis and marginal contraction band necrosis

12-24 hrs

23

coagulation necrosis and neutrophilic infiltrate

1-5 days

24

mphage phagocytosis of dead cells

5-10

25

graunulation tissue and neovascularization

10-14

26

collagen deposition
scar formation

2wks to 2 mos

27

delusional disorder

one or more delusions in abscence of other psychotic sxs lasts > 1 month


*function is not significantly impaired apart from direct impact of delusions

28

prominent peristalsis in infant w/ olive sized mass in abdomen

congenital pyloric stenosis d/t hypertorphy of pyloric muscularis

29

Volin=Volout

A1V1=A2V2

30

test to detect hyperreactivity in pts suspected of having asthma

methacholine airway challenge test

*FEV1/FVC is often reduced d/t increased expiratory flow resistance

31

superior mesenteric artery syndrome

transverse portion of hte duodenum is entrapped between the SMA and aorta> partial intestinal obstruction

32

cause of superior mesenteric artery syndrome

aortomesenteric angle critically decreases secondary to diminished fat, pronounced lordosis, surgical correction of scoliosis

33

cause of superior mesenteric artery syndrome

aortomesenteric angle critically decreases secondary to diminished fat, pronounced lordosis, surgical correction of scoliosis

34

positive skew

mean > median

35

negative skey

mode greater than mean

36

abdominal colic
constipation
HA
lead line
peirpheral neuropathy
hypochromic anemia
basophillic stippling

adult lead toxicity

37

batteries
alloys
ammmunition

mining, smelting
chemical processing
recycling
spray painting
radiator repair

Lead exposure

38

only pathogenic fungus w/ a polysaccharide capsule that appears RED on mucicarmine stain and has a clear unstained szone w/ india ink

cryptococcus neoformas

39

why does acyclovir not work for EBV/CMV

don't produce the same thymidine kinase > decreased drug phosphorylation neccessary for activation

40

first line management of status epilepticus

Benzos

41

administered to prevent recurrence of seizures

phenytoin

42

mechanism of phenytoin

inhibits neuronal high frequency firing by reducing abiliby of Na channels to recover from activation

43

chelating agent used to tx arsenic poisoning

dimercaprol

44

CaNaEDTA

lead and mercury poisoning

45

Amyl nitrite

cyanide poisoning

46

Deferoxamine

iron poisoning

47

DMD mutation

X linked recessive myopathy d/t deletion of dytrophin gene

48

weakness of foot dorsiflexion
mutation of genes responsible for myelin syntehsis

Charcot marie tooth

49

ANP

secreted by atrial cardiomyocytes in response to atrial stretch induced by HTN/hypervolemia>
vasodilation adn increased urinary excretion of Na and Water

50

ANP

secreted by atrial cardiomyocytes in response to atrial stretch induced by HTN/hypervolemia>
vasodilation adn increased urinary excretion of Na and Water

51

which hepattis integrates into the host genome increasing hte risk for hepatocellular carcinoma

Hep B

*integrates DNA using RT

52

common compliation of acute pancreatitis

Pancreatic pseudocyst

53

what is a pancreatic pseudocyst

collection of fluid rich in enzymes/inflammatory depris w/ walls of granulation tissue and fibrosis

NOT lined by epithlieum

54

major determinant of forward to regurgitant flow ratio in pts w/ mitral regurgitation

LV afterload

55

how does decreasing afterload help w/ mitral regurgitation

increase forward flow while reducing regurgitatnt flow