CT003 Certified Cardiographic
Technician Exam Prep: Study Guide
and Practice Questions
EXAM
## Section 1: Patient Care, Safety, and Ethics (Questions 1-25)
**1. Which of the following is the most appropriate method to verify
patient identity before performing an ECG?**
A) Ask for the patient's first name only
B) Use the medical record number only
C) Ask for two identifiers such as full name and date of birth
D) Ask for the patient's insurance card number
**Answer: C**
**Rationale:** Using at least two independent identifiers (e.g., full
name and date of birth) complies with patient safety standards and
reduces the risk of misidentification. Joint Commission guidelines
require two patient identifiers before any procedure .
**2. The primary purpose of explaining the ECG procedure to a patient
is to:**
,A) Reduce the cost of the test
B) Increase the technician's efficiency
C) Decrease patient anxiety and improve cooperation
D) Allow the patient to perform the test themselves
**Answer: C**
**Rationale:** Patient education reduces anxiety, promotes
cooperation, and helps obtain a high-quality recording. An informed,
relaxed patient is less likely to have muscle tension artifacts .
**3. Which document must be obtained and signed before a diagnostic
ECG is performed on an adult who is capable of consent?**
A) Insurance authorization form
B) Informed consent form
C) Referral letter from the physician
D) Laboratory requisition sheet
**Answer: B**
**Rationale:** Informed consent confirms that the patient
understands the nature, risks, and benefits of the test. While routine
ECGs may not require formal written consent in all settings, invasive
procedures like pacemaker placement do .
,**4. Before placing electrodes on a patient for an ECG, what is the
priority action for the technician?**
A) Verify the patient's insurance
B) Perform hand hygiene
C) Calibrate the machine
D) Review the patient's diet
**Answer: B**
**Rationale:** Hand hygiene is the priority action to prevent infection
transmission. This should be performed before any patient contact .
**5. A patient is taking a beta-blocker. Which ECG preparation
consideration is most important?**
A) Shave the chest more extensively
B) Increase the gain to 15 mm/mV
C) Document the medication because it may lower heart rate
D) Use a faster paper speed of 50 mm/sec
**Answer: C**
**Rationale:** Beta-blockers can blunt tachycardia responses and
lower resting heart rate. Documenting medications helps the
interpreting physician properly evaluate heart-rate-related findings .
, **6. The best technique for preparing the skin at electrode sites to
reduce impedance is:**
A) Wipe with a dry cloth only
B) Shave, abrade lightly, and clean with alcohol
C) Apply petroleum jelly before the electrode
D) Use only water to clean the skin
**Answer: B**
**Rationale:** Shaving, gentle abrasion, and alcohol cleaning remove
keratin and oils, lowering impedance and improving signal quality .
**7. If electrodes do not adhere properly to the patient's skin, the
technician should:**
A) Use tape to secure them
B) Gently abrade the thin upper layer of the skin
C) Apply more gel
D) Change the electrode location
**Answer: B**
**Rationale:** Gently abrading the skin removes dead skin cells and
oils, improving electrode adhesion and signal conduction .
Technician Exam Prep: Study Guide
and Practice Questions
EXAM
## Section 1: Patient Care, Safety, and Ethics (Questions 1-25)
**1. Which of the following is the most appropriate method to verify
patient identity before performing an ECG?**
A) Ask for the patient's first name only
B) Use the medical record number only
C) Ask for two identifiers such as full name and date of birth
D) Ask for the patient's insurance card number
**Answer: C**
**Rationale:** Using at least two independent identifiers (e.g., full
name and date of birth) complies with patient safety standards and
reduces the risk of misidentification. Joint Commission guidelines
require two patient identifiers before any procedure .
**2. The primary purpose of explaining the ECG procedure to a patient
is to:**
,A) Reduce the cost of the test
B) Increase the technician's efficiency
C) Decrease patient anxiety and improve cooperation
D) Allow the patient to perform the test themselves
**Answer: C**
**Rationale:** Patient education reduces anxiety, promotes
cooperation, and helps obtain a high-quality recording. An informed,
relaxed patient is less likely to have muscle tension artifacts .
**3. Which document must be obtained and signed before a diagnostic
ECG is performed on an adult who is capable of consent?**
A) Insurance authorization form
B) Informed consent form
C) Referral letter from the physician
D) Laboratory requisition sheet
**Answer: B**
**Rationale:** Informed consent confirms that the patient
understands the nature, risks, and benefits of the test. While routine
ECGs may not require formal written consent in all settings, invasive
procedures like pacemaker placement do .
,**4. Before placing electrodes on a patient for an ECG, what is the
priority action for the technician?**
A) Verify the patient's insurance
B) Perform hand hygiene
C) Calibrate the machine
D) Review the patient's diet
**Answer: B**
**Rationale:** Hand hygiene is the priority action to prevent infection
transmission. This should be performed before any patient contact .
**5. A patient is taking a beta-blocker. Which ECG preparation
consideration is most important?**
A) Shave the chest more extensively
B) Increase the gain to 15 mm/mV
C) Document the medication because it may lower heart rate
D) Use a faster paper speed of 50 mm/sec
**Answer: C**
**Rationale:** Beta-blockers can blunt tachycardia responses and
lower resting heart rate. Documenting medications helps the
interpreting physician properly evaluate heart-rate-related findings .
, **6. The best technique for preparing the skin at electrode sites to
reduce impedance is:**
A) Wipe with a dry cloth only
B) Shave, abrade lightly, and clean with alcohol
C) Apply petroleum jelly before the electrode
D) Use only water to clean the skin
**Answer: B**
**Rationale:** Shaving, gentle abrasion, and alcohol cleaning remove
keratin and oils, lowering impedance and improving signal quality .
**7. If electrodes do not adhere properly to the patient's skin, the
technician should:**
A) Use tape to secure them
B) Gently abrade the thin upper layer of the skin
C) Apply more gel
D) Change the electrode location
**Answer: B**
**Rationale:** Gently abrading the skin removes dead skin cells and
oils, improving electrode adhesion and signal conduction .
