Question 1

Which of the following cells released from the islets of Langerhans produce glucagon, which increases the blood glucose levels?

Accepted Answer

A)  Alpha cells 
B)  Beta cells 
C)  Gamma cells 
D)  Delta cells 
A)  Alpha cells 
B)  Beta cells 
C)  Gamma cells 
D)  Delta cells A

Question 2

There are 15 small boxes between R waves on an ECG tracing. What is the heart rate?

Accepted Answer

A)  150 
B)  120 
C)  100 
D)  20 
A)  150 
B)  120 
C)  100 
D)  20 C

Question 3

On a properly calibrated ECG machine, 1 mV is equivalent to a height of ________ boxes.

Accepted Answer

A)  five small 
B)  ten small 
C)  one large 
D)  four large 
A)  five small 
B)  ten small 
C)  one large 
D)  four large B

Question 4

In which of the following situations is a significant amount of carboxyhemoglobin most likely to be present?

Accepted Answer

A)  A patient who is being treated with nitrites for cyanide poisoning 
B)  A patient with COPD who is short of breath with an SpO2 of 90 percent 
C)  A patient found unresponsive in an apartment in which there is a gas furnace 
D)  A patient who inhaled anhydrous ammonia fumes 
A)  A patient who is being treated with nitrites for cyanide poisoning 
B)  A patient with COPD who is short of breath with an SpO2 of 90 percent 
C)  A patient found unresponsive in an apartment in which there is a gas furnace 
D)  A patient who inhaled anhydrous ammonia fumes

Question 5

The color of the blood tube that is usually first in sequence for filling and is without an anticoagulant (used for blood typing and cross-matching) is:

Accepted Answer

A)  blue. 
B)  green. 
C)  red. 
D)  gray. 
A)  blue. 
B)  green. 
C)  red. 
D)  gray.

Question 6

The valve between the right atrium and right ventricle is the ________ valve.

Accepted Answer

A)  bicuspid 
B)  pulmonic 
C)  tricuspid 
D)  aortic 
A)  bicuspid 
B)  pulmonic 
C)  tricuspid 
D)  aortic

Question 7

Which of the following occurs during depolarization of a cardiac cell?

Accepted Answer

A)  Sodium moves out of the cell. 
B)  The cell becomes relatively more positively charged. 
C)  Potassium moves into the cell. 
D)  The cell becomes negatively charged. 
A)  Sodium moves out of the cell. 
B)  The cell becomes relatively more positively charged. 
C)  Potassium moves into the cell. 
D)  The cell becomes negatively charged.

Question 8

Blood entering the left atrium arrives via the:

Accepted Answer

A)  bicuspid valve. 
B)  superior and inferior vena cava. 
C)  pulmonary vein. 
D)  pulmonary artery. 
A)  bicuspid valve. 
B)  superior and inferior vena cava. 
C)  pulmonary vein. 
D)  pulmonary artery.

Question 9

Which of the following is the correct sequence of cardiac electrical activity?
1) AV node
2) Internodal pathways
3) Bundle of His
4) SA node
5) Purkinje fibers
6) Bundle branches

Accepted Answer

A)  1, 2, 4, 3, 6, 5 
B)  4, 1, 2, 3, 6, 5 
C)  1, 2, 4, 3, 5, 6 
D)  4, 2, 1, 3, 6, 5 
A)  1, 2, 4, 3, 6, 5 
B)  4, 1, 2, 3, 6, 5 
C)  1, 2, 4, 3, 5, 6 
D)  4, 2, 1, 3, 6, 5

Question 10

Which of the following is affected by a properly working pacemaker?

Accepted Answer

A)  Automaticity 
B)  Stroke volume 
C)  Cardiac rhythm 
D)  Ejection fraction 
A)  Automaticity 
B)  Stroke volume 
C)  Cardiac rhythm 
D)  Ejection fraction

Question 11

The lead to the left of the sternum at the fourth intercostal space is:

Accepted Answer

A)  V1. 
B)  V2. 
C)  V3. 
D)  V4. 
A)  V1. 
B)  V2. 
C)  V3. 
D)  V4.

Question 12

Which of the following statements concerning Q waves on the ECG is most accurate?

Accepted Answer

A)  Q waves are not a normal finding on the ECG. 
B)  The absence of a Q wave is a significant pathophysiological finding. 
C)  A Q wave is significant if it is 0.04 or more seconds wide. 
D)  A Q wave is significant only in the presence of chest pain. 
A)  Q waves are not a normal finding on the ECG. 
B)  The absence of a Q wave is a significant pathophysiological finding. 
C)  A Q wave is significant if it is 0.04 or more seconds wide. 
D)  A Q wave is significant only in the presence of chest pain.

Question 13

Which of the following arteries supplies blood primarily to the left ventricle and posterior wall?

Accepted Answer

A)  Right coronary 
B)  Left coronary 
C)  Posterior descending 
D)  Marginal 
A)  Right coronary 
B)  Left coronary 
C)  Posterior descending 
D)  Marginal

Question 14

Capnometry measures the partial pressure of CO2 in:

Accepted Answer

A)  venous blood. 
B)  arterial blood. 
C)  expired air. 
D)  inspired air. 
A)  venous blood. 
B)  arterial blood. 
C)  expired air. 
D)  inspired air.

Question 15

The mitral valve is open during:

Accepted Answer

A)  systole. 
B)  cardiac standstill. 
C)  diastole. 
D)  repolarization. 
A)  systole. 
B)  cardiac standstill. 
C)  diastole. 
D)  repolarization.

Question 16

The presence of inverted T waves on an ECG indicates:

Accepted Answer

A)  myocardial infarction. 
B)  myocardial necrosis. 
C)  myocardial ischemia. 
D)  myocardial instability. 
A)  myocardial infarction. 
B)  myocardial necrosis. 
C)  myocardial ischemia. 
D)  myocardial instability.

Question 17

The greater the concentration of hydrogen ions in arterial blood, the ________ the pH.

Accepted Answer

A)  more erratic 
B)  higher 
C)  more dangerous 
D)  lower 
A)  more erratic 
B)  higher 
C)  more dangerous 
D)  lower

Question 18

Which of the following cells released from the islets of Langerhans produce somatostatin, which inhibits production of glucagon and insulin?

Accepted Answer

A)  Alpha cells 
B)  Beta cells 
C)  Gamma cells 
D)  Delta cells 
A)  Alpha cells 
B)  Beta cells 
C)  Gamma cells 
D)  Delta cells

Question 19

To detect life-threatening cardiac dysrhythmias, the paramedic must view the ECG in ________ lead(s).

Accepted Answer

A)  two 
B)  one 
C)  three 
D)  twelve 
A)  two 
B)  one 
C)  three 
D)  twelve

Question 20

The precordial leads provide a view of the:

Accepted Answer

A)  lateral plane of the heart, including part of the right ventricle, most of the left ventricle, and the septum. 
B)  horizontal plane of the heart, including the right ventricle and right atrium. 
C)  inferior portion of the heart, including the entire right ventricle. 
D)  horizontal plane of the heart, including the left ventricle and septum. 
A)  lateral plane of the heart, including part of the right ventricle, most of the left ventricle, and the septum. 
B)  horizontal plane of the heart, including the right ventricle and right atrium. 
C)  inferior portion of the heart, including the entire right ventricle. 
D)  horizontal plane of the heart, including the left ventricle and septum.

Which of the following cells released from the islets of Langerhans produce glucagon, which increases the blood glucose levels?

There are 15 small boxes between R waves on an ECG tracing. What is the heart rate?

On a properly calibrated ECG machine, 1 mV is equivalent to a height of ________ boxes.

In which of the following situations is a significant amount of carboxyhemoglobin most likely to be present?

The color of the blood tube that is usually first in sequence for filling and is without an anticoagulant (used for blood typing and cross-matching) is:

The valve between the right atrium and right ventricle is the ________ valve.

Which of the following occurs during depolarization of a cardiac cell?

Blood entering the left atrium arrives via the:

Which of the following is the correct sequence of cardiac electrical activity? 1) AV node 2) Internodal pathways 3) Bundle of His 4) SA node 5) Purkinje fibers 6) Bundle branches

Which of the following is affected by a properly working pacemaker?

The lead to the left of the sternum at the fourth intercostal space is:

Which of the following statements concerning Q waves on the ECG is most accurate?

Which of the following arteries supplies blood primarily to the left ventricle and posterior wall?

Capnometry measures the partial pressure of CO₂ in:

The mitral valve is open during:

The presence of inverted T waves on an ECG indicates:

The greater the concentration of hydrogen ions in arterial blood, the ________ the pH.

Which of the following cells released from the islets of Langerhans produce somatostatin, which inhibits production of glucagon and insulin?

To detect life-threatening cardiac dysrhythmias, the paramedic must view the ECG in ________ lead(s).

The precordial leads provide a view of the:

Scene Size-Up

Primary Assessment

Therapeutic Communications

History Taking

Secondary Assessment

Patient Assessment in the Field

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Exam 6: Patient Monitoring Technology

Which of the following cells released from the islets of Langerhans produce glucagon, which increases the blood glucose levels?

There are 15 small boxes between R waves on an ECG tracing. What is the heart rate?

On a properly calibrated ECG machine, 1 mV is equivalent to a height of ________ boxes.

In which of the following situations is a significant amount of carboxyhemoglobin most likely to be present?

The color of the blood tube that is usually first in sequence for filling and is without an anticoagulant (used for blood typing and cross-matching) is:

The valve between the right atrium and right ventricle is the ________ valve.

Which of the following occurs during depolarization of a cardiac cell?

Blood entering the left atrium arrives via the:

Which of the following is the correct sequence of cardiac electrical activity? 1) AV node 2) Internodal pathways 3) Bundle of His 4) SA node 5) Purkinje fibers 6) Bundle branches

Which of the following is affected by a properly working pacemaker?

The lead to the left of the sternum at the fourth intercostal space is:

Which of the following statements concerning Q waves on the ECG is most accurate?

Which of the following arteries supplies blood primarily to the left ventricle and posterior wall?

Capnometry measures the partial pressure of CO2 in:

The mitral valve is open during:

The presence of inverted T waves on an ECG indicates:

The greater the concentration of hydrogen ions in arterial blood, the ________ the pH.

Which of the following cells released from the islets of Langerhans produce somatostatin, which inhibits production of glucagon and insulin?

To detect life-threatening cardiac dysrhythmias, the paramedic must view the ECG in ________ lead(s).

The precordial leads provide a view of the:

Scene Size-Up

Primary Assessment

Therapeutic Communications

History Taking

Secondary Assessment

Patient Assessment in the Field

Filters

Capnometry measures the partial pressure of CO₂ in: