Page 1 of 40
CCI CRAT EXAM 2026–2027: THE
VERIFIED Q&A CERTIFICATION
VAULT FEATURING PRACTICE
QUESTIONS ON ATRIAL, JUNCTIONAL,
VENTRICULAR, AND PACED RHYTHMS
WITH THE LATEST UPDATED CCI JOB
TASK ANALYSIS FOR A GUARANTEED
A+ PASS
The two electrolytes needed in order for the
heart to function normally >>correct answer
>> potassium and calcium
Pacs are rarely dangerous, but in a patient with
this condition, it can serve as an early sign or
heart failure or electrolyte imbalance.
>>correct answer >> acute myocardial
infarction
,Page 2 of 40
As an electrical current travels to a negative
pole on an ecg, the waveform deflects in which
direction? >>correct answer >> downward
What does the s wave represent on the ecg
tracing? >>correct answer >> late ventricular
depolarization
How many leads does a 24 hour holter monitor
have? >>correct answer >> 5
A single chamber pacemaker has one lead into
which of the two chambers of the heart?
>>correct answer >> right atrium or right
ventricle
The patient is experiencing vfib, where do the
electrical impulses come from? >>correct
answer >> many different foci
,Page 3 of 40
On a 12 lead ecg, where would we look when
trying to assess for ajr? >>correct answer >>
lead ii, iii, avf
When is a biventricular pacer used? >>correct
answer >> pre-cardiac transplant patient
What part of the ecg tracing starts with the atrial
depolarization and ends with ventricular
depolarization? >>correct answer >> pr
interval
What is the normal qt interval length?
>>correct answer >> 0.36-0.44 seconds
What should the ecg tech include in the patients
chart entry? >>correct answer >> medical
history, meds, patient id, diagnostic results, date
, Page 4 of 40
and time of test, symptoms and reason for test,
informed consent docs, patient instructions
Bradycardia can be caused by? >>correct
answer >> hyperkalemia, deep relaxation,
increased intracranial pressure, valsalva
maneuver, hypothyroidism, hypothermia, sleep,
glaucoma, carotid sinus massage, vomiting,
cardiac disease, certain drugs.
If 1 or 2 beats are not formed in atrial standstill,
its called? >>correct answer >> sinus pause
What would cause sinus arrest? >>correct
answer >> sa node failure
What diseases cause right bundle branch block?
>>correct answer >> anterior mi, cad, pe, cor
pulmonale, rate related bbb
CCI CRAT EXAM 2026–2027: THE
VERIFIED Q&A CERTIFICATION
VAULT FEATURING PRACTICE
QUESTIONS ON ATRIAL, JUNCTIONAL,
VENTRICULAR, AND PACED RHYTHMS
WITH THE LATEST UPDATED CCI JOB
TASK ANALYSIS FOR A GUARANTEED
A+ PASS
The two electrolytes needed in order for the
heart to function normally >>correct answer
>> potassium and calcium
Pacs are rarely dangerous, but in a patient with
this condition, it can serve as an early sign or
heart failure or electrolyte imbalance.
>>correct answer >> acute myocardial
infarction
,Page 2 of 40
As an electrical current travels to a negative
pole on an ecg, the waveform deflects in which
direction? >>correct answer >> downward
What does the s wave represent on the ecg
tracing? >>correct answer >> late ventricular
depolarization
How many leads does a 24 hour holter monitor
have? >>correct answer >> 5
A single chamber pacemaker has one lead into
which of the two chambers of the heart?
>>correct answer >> right atrium or right
ventricle
The patient is experiencing vfib, where do the
electrical impulses come from? >>correct
answer >> many different foci
,Page 3 of 40
On a 12 lead ecg, where would we look when
trying to assess for ajr? >>correct answer >>
lead ii, iii, avf
When is a biventricular pacer used? >>correct
answer >> pre-cardiac transplant patient
What part of the ecg tracing starts with the atrial
depolarization and ends with ventricular
depolarization? >>correct answer >> pr
interval
What is the normal qt interval length?
>>correct answer >> 0.36-0.44 seconds
What should the ecg tech include in the patients
chart entry? >>correct answer >> medical
history, meds, patient id, diagnostic results, date
, Page 4 of 40
and time of test, symptoms and reason for test,
informed consent docs, patient instructions
Bradycardia can be caused by? >>correct
answer >> hyperkalemia, deep relaxation,
increased intracranial pressure, valsalva
maneuver, hypothyroidism, hypothermia, sleep,
glaucoma, carotid sinus massage, vomiting,
cardiac disease, certain drugs.
If 1 or 2 beats are not formed in atrial standstill,
its called? >>correct answer >> sinus pause
What would cause sinus arrest? >>correct
answer >> sa node failure
What diseases cause right bundle branch block?
>>correct answer >> anterior mi, cad, pe, cor
pulmonale, rate related bbb
