UWorld Practice Test Section 1 Flashcards Preview

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Flashcards in UWorld Practice Test Section 1 Deck (21):
1

An immunocompromised pt presents w/ a painless ulcer w/ a necrotic center and an erythematous halo. Dx?

Ecthyma gangrenosum

2

What organism most is most commonly associated w/ ecthyma gangrenosum?

Pseudomonas

3

What cardiac problem causes pulses that decrease intensity upon deep inspiration?

cardiac tamponade (this is pulsus paradoxus)

4

How would HSV encephalitis effect the CSF quanitities of the following: WBCs, glucose, and protein?

lymphocytic pleocytosis, normal glucose, hi protein

5

What, aside from WBCs and protein, is present in unusually high amounts in the CSF of pts w/ herpes encephalitis?

RBCs

6

What causes the rise in CSF RBCs in HSV encephalitis?

hemorrhagic destruction of temporofrontal lobes

7

How would acute bacterial encephalitis effect the CSF quantities of the following: WBCs, glucose, and protein?

neutrophilic pleocytosis, low glucose, hi protein

8

How would CHRONIC bacterial encephalitis (e.g. from M. tuberculosis) effect the CSF quantities of the following: WBCs, glucose, and protein?

lymphocytic pleocytosis, low glucose, hi protein

9

What is the effect of restrictive lung disease on FEV1?

low

10

What is the effect of restrictive lung disease on FEV1/FVC?

normal to high (80-120%)

11

What is the effect of chronic bronchitis or emphysema on FVC?

none! (normal value)

12

The most common cause of pseudo claudication is ______, which usually occurs secondary to _______.

spinal stenosis; spinal osteoarthritis

13

Why would a lung cancer pt develop easy bruising and hyperpigmentation?

ectopic ACTH production

14

How dilated must the cervix be in order to be in active labor?

4 cm

15

How fast should the cervix continue to dilate, once in active labor, in order to be normal progresion of labor?

>1 cm/hr
(1.2 for nulliparous, 1.5 cm for multiparous)

16

What 3 factors must be considered when labor is protracted?

Power, passenger, and pelvis

17

What is a Montevideo unit, which is used to assess the adequacy of contractions using intrauterine catheters?

mmHg per 10 mins

18

What is considered adequate contractions in Montevideo units?

>200

19

Station refers to the relationship of the presenting bony part of the fetal head in relation to the _______.

ischial spines

20

How often should contractions occur in order to be termed adequate?

every 2-3 mins

21

How long should contractions last in order to be termed adequate?

40-60 sec