nur 425 cc exam 1 UPDATED ACTUAL
Exam Questions and CORRECT Answers
What is the difference between sinus rhythm and sinus bradycardia?
a. different rhythm
b. different QRS complex
c. different rates
d. different p waves - CORRECT ANSWER - c. different rates
Which intervals are traditionally measured to be able to evaluate an electrocardiogram? SATA
a. QRS
b. PR interval
c. TR interval
d. PT interval - CORRECT ANSWER - a. QRS
b. PR interval
Which is the correct order of normal electrical activity in the cardiac cycle?
a. Bundle branches, Purkinje fibers, SA node, AV node
b. SA node, AV node, Bundle branches, Purkinje fibers
c. SA node, Purkinje fibers, AV node, Bundle brances
d. AV node, SA node, Bundle brances, Purkinje fibers - CORRECT ANSWER - b. SA
node, AV node, Bundle branches, Purkinje fibers
The horizontal axis of the EKG graph paper measures what concept?
a. Time
b. Voltage
c. Cardiac output
d. Blood flow - CORRECT ANSWER - a. Time
,If the R to R ratios in an EKG are inconsistent, what is true about the EKG strip?
a. rate is normal
b. rhythm is regular
c. rhythm is irregular
d. rate is abnormal - CORRECT ANSWER - c. rhythm is irregular
An RN at a provider's office receives a phone call from a pt who reports nausea and unrelieved
chest pain after taking a nitroglycerin tablet 5 mins ago. Which of the following is an appropriate
response by the RN?
a. Tell client to take an antacid
b. Instruct client to call 911
c. Tell client to take another nitroglycerin tablet in 15 mins
d. Advise the client to come to office - CORRECT ANSWER - b. Instruct client to call
911
b/c client is having unstable angina or acute MI
An RN is teaching the partner of a pt who had an acute MI about the reason blood was drawn
from the pt. Which of the following statements should the RN make regarding cardiac enzyme
studies?
a. "These tests help determine the degree of damage to the heart tissues."
b. "Cardiac enzymes will identify the location of the MI."
c. "These tests will enable the provider to determine the heart structure and mobility of the heart
valves."
d. "Cardiac enzymes assist in diagnosing the presence of pulmonary congestion." - CORRECT
ANSWER - a. "These tests help determine the degree of damage to the heart tissues."
An RN is teaching about necessary baseline examinations with a female pt who is to start taking
atorvastatin. Which of the following baseline examinations should the RN include in the
teaching?
, a. Liver function tests
b. Hearing test
c. Papanicolaou test
d. Dental examination - CORRECT ANSWER - a. Liver function tests
Atorvastatin can cause liver damage and should not be taken by clients who have a hx of liver
disease. Client should undergo baseline liver function before beginning therapy and every 6-12
months thereafter
An RN is caring for a pt who came to the emergency department reporting chest pain. The
provider suspects an MI. While waiting for the troponin levels report, the pt asks what this blood
test will show. Which of the following explanations should the RN provide the client?
a. Troponin is an enzyme that indicates damage to brain, heart, and skeletal muscle tissues
b. Troponin is a lipid whose levels reflect the risk for coronary artery disease.
c. Troponin is a heart muscle protein that appears in the bloodstream when there is damage to the
heart.
d. Troponin is a protein that helps transport O2 throughout the body - CORRECT
ANSWER - c. Troponin is a heart muscle protein that appears in the bloodstream when
there is damage to the heart.
An RN on a med/surg unit is caring for a pt who reports pain in jaw, back, and shoulder, and
shortness of breath and nausea. Which of the following actions should the RN take?
a. Obtain an EKG
b. Administer enteric-coated acetaminophen
c. Administer ibuprofen
d. Maintain O2 sats greater than or equal to 92% - CORRECT ANSWER - a. Obtain an
EKG
An RN is teaching a pt who has a new prescription for simvastatin. Which of the following
instructions should the RN include?
a. "You should expect brown-colored urine."
Exam Questions and CORRECT Answers
What is the difference between sinus rhythm and sinus bradycardia?
a. different rhythm
b. different QRS complex
c. different rates
d. different p waves - CORRECT ANSWER - c. different rates
Which intervals are traditionally measured to be able to evaluate an electrocardiogram? SATA
a. QRS
b. PR interval
c. TR interval
d. PT interval - CORRECT ANSWER - a. QRS
b. PR interval
Which is the correct order of normal electrical activity in the cardiac cycle?
a. Bundle branches, Purkinje fibers, SA node, AV node
b. SA node, AV node, Bundle branches, Purkinje fibers
c. SA node, Purkinje fibers, AV node, Bundle brances
d. AV node, SA node, Bundle brances, Purkinje fibers - CORRECT ANSWER - b. SA
node, AV node, Bundle branches, Purkinje fibers
The horizontal axis of the EKG graph paper measures what concept?
a. Time
b. Voltage
c. Cardiac output
d. Blood flow - CORRECT ANSWER - a. Time
,If the R to R ratios in an EKG are inconsistent, what is true about the EKG strip?
a. rate is normal
b. rhythm is regular
c. rhythm is irregular
d. rate is abnormal - CORRECT ANSWER - c. rhythm is irregular
An RN at a provider's office receives a phone call from a pt who reports nausea and unrelieved
chest pain after taking a nitroglycerin tablet 5 mins ago. Which of the following is an appropriate
response by the RN?
a. Tell client to take an antacid
b. Instruct client to call 911
c. Tell client to take another nitroglycerin tablet in 15 mins
d. Advise the client to come to office - CORRECT ANSWER - b. Instruct client to call
911
b/c client is having unstable angina or acute MI
An RN is teaching the partner of a pt who had an acute MI about the reason blood was drawn
from the pt. Which of the following statements should the RN make regarding cardiac enzyme
studies?
a. "These tests help determine the degree of damage to the heart tissues."
b. "Cardiac enzymes will identify the location of the MI."
c. "These tests will enable the provider to determine the heart structure and mobility of the heart
valves."
d. "Cardiac enzymes assist in diagnosing the presence of pulmonary congestion." - CORRECT
ANSWER - a. "These tests help determine the degree of damage to the heart tissues."
An RN is teaching about necessary baseline examinations with a female pt who is to start taking
atorvastatin. Which of the following baseline examinations should the RN include in the
teaching?
, a. Liver function tests
b. Hearing test
c. Papanicolaou test
d. Dental examination - CORRECT ANSWER - a. Liver function tests
Atorvastatin can cause liver damage and should not be taken by clients who have a hx of liver
disease. Client should undergo baseline liver function before beginning therapy and every 6-12
months thereafter
An RN is caring for a pt who came to the emergency department reporting chest pain. The
provider suspects an MI. While waiting for the troponin levels report, the pt asks what this blood
test will show. Which of the following explanations should the RN provide the client?
a. Troponin is an enzyme that indicates damage to brain, heart, and skeletal muscle tissues
b. Troponin is a lipid whose levels reflect the risk for coronary artery disease.
c. Troponin is a heart muscle protein that appears in the bloodstream when there is damage to the
heart.
d. Troponin is a protein that helps transport O2 throughout the body - CORRECT
ANSWER - c. Troponin is a heart muscle protein that appears in the bloodstream when
there is damage to the heart.
An RN on a med/surg unit is caring for a pt who reports pain in jaw, back, and shoulder, and
shortness of breath and nausea. Which of the following actions should the RN take?
a. Obtain an EKG
b. Administer enteric-coated acetaminophen
c. Administer ibuprofen
d. Maintain O2 sats greater than or equal to 92% - CORRECT ANSWER - a. Obtain an
EKG
An RN is teaching a pt who has a new prescription for simvastatin. Which of the following
instructions should the RN include?
a. "You should expect brown-colored urine."
