tee, thermoregulation

Question 1

general and regional anesthesia cause vaso__

Answer 1

dilation

Question 2

temp monitoring is required for

Answer 2

peds patients receiving general and when indicated on other patients

Question 3

factors that place patients at high risk for hypothermia

Answer 3

high ASA status, lengthy surgery, combined epidural and general, elderly, lean body mass

Question 4

protective factors for hypothermia

Answer 4

increased body weight, higher pre-op temp, warmer rooms

Question 5

hypothermia is core body temp less than

Answer 5

36

Question 6

who’s at greatest risk of developing hypothermia?

Answer 6

extremes of age

Question 7

o2 consumption is reduced by ___ degrees for every 1 degree C

Answer 7

5-7

Question 8

when is hypothermia useful

Answer 8

CVA, aneurysm clipping, TBI, <3 bypass, cardiac arrest, carotid endarterectomy

Question 9

where should the esophageal probe be placed

Answer 9

distal 1/3 to 1/4 of the esophagus, 38-42cm past incisors

Question 10

shivering __ the risk of myocardial ischemia and infarction

Answer 10

increases.

Question 11

hypothermia causes ___ emergence

Answer 11

prolonged

Question 12

phase 1

Answer 12

heat redistribution from core to periphery

Question 13

phase 2

Answer 13

heat transfer > heat production

Question 14

phase 3

Answer 14

heat transfer = heat production

Question 15

what composes the afferent limb?

Answer 15

thermoreceptors on skin, deep tissue, and spinal cord, send info to hypothalamus

Question 16

what composes the control center?

Answer 16

hypothalamus (pre-optic) and brain stem

Question 17

efferent response to cold

Answer 17

vasoconstriction, piloerection, shivering, non shivering thermogenesis

Question 18

efferent response to hot

Answer 18

vasodilation, diaphoresis

Question 19

order of heat loss

Answer 19

radiation> convection> evaporation > conduction

Question 20

efferent response process

Answer 20

responsible for sending the calculated response to targeted functioning systems within the body. (subcutaneous blood flow, sweating, skeletal muscle tone, metabolic activity.

Question 21

mild hypothermia

Answer 21

32-35

Question 22

mod hypothermia

Answer 22

28-32

Question 23

severe hypothermia

Answer 23

<28

Question 24

hypothermia causes __ wave

Answer 24

J wave - osborne wave. slow upright deflection between the end of the QRS and early portion of ST segmen

Question 25

hypothermia causes __ PVR

Answer 25

increased

Question 26

hypothermia causes ___ drug metabolism

Answer 26

delayed

Question 27

during phase 1, first hour, core temp decreases about

Answer 27

1-2 degrees

Question 28

phase 2 is ___ hours into surgery

Answer 28

3-4

Question 29

MH might be caused by

Answer 29

mutation of ryr1 receptor

Question 30

MH causes __ CO2 production

Answer 30

increased

Question 31

MH causes what kind of ph imblance

Answer 31

metabolic acidosis

Question 32

MH causes ___ sympathetic activity

Answer 32

increase

Question 33

most common reason for hyperthermia

Answer 33

hypercarbia from CO2 insufflation

Question 34

first thing to do if you suspect MH

Answer 34

discontinue anesthetic gas and succs

Question 35

dantrolene dose

Answer 35

2.5mg/kg

Question 36

hyperthermia is over ___, hypothermia is below __

Answer 36

38, 36