CNUR 305 Final Practice Exam With Complete
Questions And 100%Correct Detailed Answers
|Already Graded A+(Updated Version!)
. The nurse notes that a patient's cardiac monitor shows
that every other beat is earlier than expected, has no
visible P wave, and has a QRS complex that is wide and
bizarre in shape. How will the nurse document the
rhythm?
a. Ventricular couplets
b. Ventricular bigeminy
c. Ventricular R-on-T phenomenon
d. Multifocal premature ventricular contractions -
ANSWER-ANS: B
,Ventricular bigeminy describes a rhythm in which every
other QRS complex is wide and bizarre looking. Pairs of
wide QRS complexes are described as ventricular
couplets. There is no indication that the premature
ventricular contractions (PVCs) are multifocal or that the
R-on-T phenomenon is occurring.
To determine whether there is a delay in impulse
conduction through the atria, the nurse will measure the
duration of the patient's
a. P wave.
b. Q wave.
c. P-R interval.
d. QRS complex. - ANSWER-ANS: A
,The P wave represents the depolarization of the atria. The
P-R interval represents depolarization of the atria,
atrioventricular (AV) node, bundle of His, bundle branches,
and the Purkinje fibers. The QRS represents ventricular
depolarization. The Q wave is the first negative deflection
following the P wave and should be narrow and short.
2. The nurse needs to quickly estimate the heart rate for a
patient with a regular heart rhythm. Which method will be
best to use?
a. Count the number of large squares in the R-R interval
and divide by 300.
b. Print a 1-minute electrocardiogram (ECG) strip and
count the number of QRS complexes.
, c. Calculate the number of small squares between one
QRS complex and the next and divide into 1500.
d. Use the 3-second markers to count the number of QRS
complexes in 6 seconds and multiply by 10. - ANSWER-
ANS: D
This is the quickest way to determine the ventricular rate
for a patient with a regular rhythm. All the other methods
are accurate, but take longer.
A patient has a junctional escape rhythm on the monitor.
The nurse will expect the patient to have a heart rate of
_____ beats/minute.
a. 15 to 20
b. 20 to 40
Questions And 100%Correct Detailed Answers
|Already Graded A+(Updated Version!)
. The nurse notes that a patient's cardiac monitor shows
that every other beat is earlier than expected, has no
visible P wave, and has a QRS complex that is wide and
bizarre in shape. How will the nurse document the
rhythm?
a. Ventricular couplets
b. Ventricular bigeminy
c. Ventricular R-on-T phenomenon
d. Multifocal premature ventricular contractions -
ANSWER-ANS: B
,Ventricular bigeminy describes a rhythm in which every
other QRS complex is wide and bizarre looking. Pairs of
wide QRS complexes are described as ventricular
couplets. There is no indication that the premature
ventricular contractions (PVCs) are multifocal or that the
R-on-T phenomenon is occurring.
To determine whether there is a delay in impulse
conduction through the atria, the nurse will measure the
duration of the patient's
a. P wave.
b. Q wave.
c. P-R interval.
d. QRS complex. - ANSWER-ANS: A
,The P wave represents the depolarization of the atria. The
P-R interval represents depolarization of the atria,
atrioventricular (AV) node, bundle of His, bundle branches,
and the Purkinje fibers. The QRS represents ventricular
depolarization. The Q wave is the first negative deflection
following the P wave and should be narrow and short.
2. The nurse needs to quickly estimate the heart rate for a
patient with a regular heart rhythm. Which method will be
best to use?
a. Count the number of large squares in the R-R interval
and divide by 300.
b. Print a 1-minute electrocardiogram (ECG) strip and
count the number of QRS complexes.
, c. Calculate the number of small squares between one
QRS complex and the next and divide into 1500.
d. Use the 3-second markers to count the number of QRS
complexes in 6 seconds and multiply by 10. - ANSWER-
ANS: D
This is the quickest way to determine the ventricular rate
for a patient with a regular rhythm. All the other methods
are accurate, but take longer.
A patient has a junctional escape rhythm on the monitor.
The nurse will expect the patient to have a heart rate of
_____ beats/minute.
a. 15 to 20
b. 20 to 40
