chapt 15 & 16

Question 1

rectal thermometer is believed to most accurately reflect core body temperature measures. use of which alternative thermometer provides measures that closely correlate to the rectal method?

Answer 1

temporal artery

Question 2

a patient is thought to have suffered cardiac arrest. the __ peripheral artery may be asses to verify the effectiveness of chest compressions during cardiopulmonary resuscitation

Answer 2

femoral and radial

Question 3

in the healthy adult the normal range for blood pressure is

Answer 3

systolic less than 120mm Hg, diastolic less than 80mm Hg

Question 4

state describing oxygen- deficient tissue

Answer 4

hypoxia

Question 5

which of the following devices can be classified as a high-flow oxygen delivery device

Answer 5

air-entrainment mask

Question 6

regarding oxygen delivery, all of the following are true EXCEPT

Answer 6

maximum dose should always be given to obtain the desired results

Question 7

an artificial airway is inserted into a patients trachea and connected to a mechanical ventilator. in this circumstance, all of the following are true EXCEPT

Answer 7

during chest imaging, the radiographer must fully extend the patient’s neck for proper head position

Question 8

a properly placed endotracheal tube will be the radiographically confirmed when the

Answer 8

distal tip is positioned 1 inch superior to the tracheal bifurcation

Question 9

thoracostomy tubes are

Answer 9

chest tubes used to drain the intrapleural space

Question 10

a patient is admitted to the emergency room and chest images are ordered. the order states “unless sitting up or standing erect, the patient has dyspnea. “ in this case, the patient has which of the following

Answer 10

orthopnea

Question 11

regarding the electrocardiographic tracing, all of the following are true except

Answer 11

repolarization of atrial muscle cells is represented by the P wave

Question 12

when multiplying heart rate times stroke volume, the product is:

Answer 12

cardiac output

Question 13

depending on the cause and severity of an arrhythmia, treatment may include which of the following

Answer 13

cardiac pacemakers or ICD devices, ablation therapy, cardioversion external shock therapy

Question 14

systolic pressures greater than __ mm Hg generally ensure adequate perfusion of tissues

Answer 14

90

Question 15

rhythmic contraction and relaxation of the chambers of the heart are controlled by principal cell types to include which of the following

Answer 15

working cardiac cells and specialized neural conductive cells

Question 16

all of the following are true of atrial fibrillation except

Answer 16

it is always fatal

Question 17

to ensure a normal sequence for each cardiac cycle, each P wave should be followed by a

Answer 17

QRS complex

Question 18

when the resting membrane potential is reserved, ___ occurs and myocardial cells are stimulated to contract

Answer 18

depolarization

Question 19

all of the following are visible on and ECG tracing except

Answer 19

atrial contraction

Question 20

for analysis of an ECG tracing, which of the below indicates regular rhythm

Answer 20

qrs complexes (RR) intervals are consistent for evaluating ventricular rhythm and intervals between P waves (PP intervals) are consistent for atrial rhythm

Question 21

prescription for

Answer 21

oxygen

Question 22

adult breaths per minute

Answer 22

12-20 breaths

Question 23

abnormally high temperature

Answer 23

hyperthermia

Question 24

blood pressure is

Answer 24

systolic over diastolic

Question 25

difficulty breathing

Answer 25

dyspnea

Question 26

major muscle of ventilation

Answer 26

diaphragm

Question 27

normal blood pressure

Answer 27

12/80

Question 28

central venous line tip

Answer 28

SVC

Question 29

mechanisms for homeostasis

Answer 29

heartbeat, blood pressure, body temp, respiratory rate, electrolyte balance

Question 30

child breaths

Answer 30

20-30 per minute

Question 31

measurement of the degree of the deep tissue in the human body

Answer 31

body temperature

Question 32

temperature below normal 99.7

Answer 32

hypothermia

Question 33

converts light intensity into oxygen saturation and pulse rate values

Answer 33

pulse oximeter

Question 34

amount of air exchanged under normal conditions

Answer 34

tidal volume

Question 35

where should CVP line be placed

Answer 35

position should be superior vena cava, approx 2 to 3 cm above the opening of the right atrium

Question 36

cardiac output is determined by what 2 key factors

Answer 36

heart rate and left ventricular output (stroke volume)

Question 37

what cells originate in and transmit electrical impulses across the myocardium and regulate the rhythm of a cardiac cycle

Answer 37

specialized neural cells

Question 38

what is influenced by sympathetic and parasympathetic nervous system

Answer 38

cardiac conduction system

Question 39

depolarization of atrial muscle

Answer 39

p wave

Question 40

depolarization of ventricular muscle

Answer 40

qrs complex

Question 41

repolarization of ventricular muscle

Answer 41

t wave

Question 42

amount of blood ejected from the ventricles each minute; calculated as the product of stroke volume times heart rate

Answer 42

cardiac output

Question 43

irregularity of cardiac actions associated with physiologic or pathologic interruption of the heart

Answer 43

arrhythmia

Question 44

heart rate above 100 beats per minute

Answer 44

tachycardia

Question 45

events that occur from the beginning of one ventricular contraction (systole) until the beginning of another

Answer 45

cardiac cycle

Question 46

abnormally slow breathing rate

Answer 46

bradypnea

Question 47

heating or freezing tissues within a chamber of the heart that is considered to be the cause of arrhythmia

Answer 47

cardiac ablation

Question 48

the body's "steady state" is maintained by adaptive responses that promote healthy survival

Answer 48

homeostasis