AND CORRECT ANSWERS GRADED A+
◉ A regular rhythm at a rate of 40-60 beats per minute, with narrow
QRS complexes, and no visible P waves, is consistent with the presence
of:
atrial fibrillation.
sinus bradycardia.
junctional rhythm.
idioventricular rhythm. Answer: junctional rhythm.
◉ What is the proper lead placement for a right side 12 lead ECG?
limb leads only placed in a mirror image of a standard 12 lead ECG
chest leads only placed in a mirror image of a standard 12 lead ECG
leads V1, V2, V3 only placed in a mirror image of a standard 12 lead
ECG
,leads V4, V5, V6 only placed in a mirror image of a standard 12 lead
ECG. Answer: chest leads only placed in a mirror image of a standard 12
lead ECG
◉ When conducting a Lexiscan stress test on a patient who is on a
stretcher, what safety precaution should be taken?
run a 12-lead ECG
have crash cart available
ensure patient has a pillow
place patient in Trendelenburg. Answer: run a 12-lead ECG
◉ Per stress test protocol, exercise capacity should be reported in _____
of exercise.
exact metastatic equivalents (METs)
anatomic metaphysic electrons (AMEs)
estimated metabolic equivalents (METs)
approximated minutes of exercise (AMEs). Answer: estimated metabolic
equivalents (METs)
◉ Left ventricular hypertrophy is indicated when the combined
measured amplitude is greater than or equal to 35 mm in which of the
following leads?
,V1 or V2 S-wave, II or AVF R-wave
V1 or V2 S-wave, V3 or V4 R-wave
V1 or V2 S-wave, V5 or V6 R-wave
V3 or V4 S-wave, V5 or V6 R-wave. Answer: V1 or V2 S-wave, V5 or
V6 R-wave
◉ Lead V6 should be placed
left mid-axillary line, 5th intercostal space.
mid-clavicular level on the patient's right side.
fifth intercostal space on the patient's right side.
mid-sternal level in the center of the patient's chest wall. Answer: left
mid-axillary line, 5th intercostal space.
◉ Which of the following rhythms has an intrinsic rate of 40-60 beats
per minute?
SA nodal
AV junctional
idioventricular
accelerated junctional. Answer: AV junctional
, ◉ An exercise stress test performed to:
evaluate disorders such as CHF.
identify ischemic changes due to CAD.
mimic the diastolic heart changes at rest.
determine if a CABG procedure is necessary. Answer: identify ischemic
changes due to CAD.
◉ You are beginning the warmup stage of a treadmill stress test and you
observe a 3mm ST segment depression in leads I and aVL. What is the
first thing you should do?
continue with your pre-test activities
initiate the first stage of the protocol
stop the treadmill and notify the physician
make a note and continue with the protocol. Answer: stop the treadmill
and notify the physician
◉ The intrinsic rate of the Purkinje network in the ventricles is:
20 to 40 beats per minute.
40 to 60 beats per minute.