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Flashcards in Comprehensive Clinical Knowledge Deck (17):
1

what is anisocoria and which cranial nerves is it associated with?

unequal pupil sizes, tests CN III, IV, VI

2

disease associated with click-murmur

mitral valve prolapse

3

criteria for pregnancy testing

females of child bearing age (~15-50)

4

calculation: pulse pressure

PP = systolic - diastolic blood pressure

5

Which condition is known to increase the risk for corneal abrasions?

exophthalmos

6

Heart sounds-location of the aortic area

right, 2nd interspace to the sternum

7

define hematocrit

percentage of whole blood that is made up by red blood cells

8

What effect does atrial fibrillation have on the CVP waveform?

-absence of CVP waveform

In atrial fibrillation, the a wave disappears and the c wave becomes more prominent, because atrial volume is greater at end-diastole and onset of systole, owing to the absence of effective atrial contraction

9

conditions producing false low readings with pulse oximetry

In a patient with excess carboxyhemoglobin, their actual O2 sat will decrease, but the pulse ox falsely asymptotes to 90%, much higher than their actual saturation; A high level of methemoglobin will cause the pulse ox to read 85% regardless of the true level of oxygen saturation

10

calculation of fractional oxygen, air-oxygen mixtures

FiO2 = (L/min O2 + L/min. Air x .21) / Total L/min.

11

during a cardiac physical exam, where is the PMI detected

point of maximal impulse, 5th intercostal space midclavicular line

12

fibrinogin, normal value

200-400 mg/dl

13

physical signs associated with hypocalcemia

Chvostek's Sign, Trousseau's Sign (carpopedal syndrome), hypotension, mental status changes, tetany, laryngospasm, dysrhythmias, long QT interval, heart block

14

normal base excess

-2 to +2 mEq/L

15

on the cardiac physical exam, what is the S1 sound?

S1 = closure of mitral & tricuspid valves at beginning of systole

16

normal plasma bicarbonate

21-29 mEq/L

17

reference point for CPP monitoring

external auditory meatus