ICU lecture

Question 1

what ms is affected in posterolateral and lateral thoracotomy

Answer 1

serratus anterior

Question 2

preload

Answer 2

volume of blood returning to the heart, amount filling the ventricle before it contracts. In VAD, it is the volume available to be pumped by the device

Question 3

Suckdown

Answer 3

when a collapsed ventricle prevents the pump from filling, causing a decrease or loss of cardiac output

Question 4

suckdown symptoms

Answer 4

Hypotension, ventricular tachycardia, variable VAD speed

Question 5

preload symptoms

Answer 5

• Light-headedness, dizziness
• Insufficient filling alarm

Question 6

afterload

Answer 6

resistance the heart has to pump against

Question 7

Position of pressure transducer for appropriate swan-Ganz measures

Answer 7

• Anatomic calibration point of peripheral arterial pressure is the level of resting catheter tup in the supine position

Question 8

effect of high transducer

Answer 8

error BP low

Question 9

effect of low transducer

Answer 9

error BP high

Question 10

normal RAP

Answer 10

Normal is 0-8 mmHg, usually <5

Question 11

increased RAP causes

Answer 11

fluid overload, RV failure, tricuspid valve insufficiency or chronic LV failure

Question 12

decreased RAP causes

Answer 12

hypovolemia or dehydration

Question 13

normal pulmonary artery wedge pressure

Answer 13

10-20 mmHg

Question 14

normal CPP

Answer 14

80-100 mmHg

Question 15

normal ICP for child

Answer 15

0-5 mmHg

Question 16

normal supine ICP adult

Answer 16

0-10 mmHg

Question 17

normal ICP adult

Answer 17

5-15 mmHg

Question 18

intracranial HTN

Answer 18

sustained ICP > 20 mmHg

Question 19

ICP for TBI pts

Answer 19

<20 mmHg

Question 20

CPP for TBI pts

Answer 20

60mmHg