CMA Certified Medical Assistant Diagnostic Testing and Laboratory Procedures Questions and Answers 2

Question 1

Which type of ECG electrode placement error would most likely cause artifact on Lead II?

Accepted Answer

Reversing the left arm and right arm electrodes

Answer

Misplacing V1 and V2

Answer

Placing V4 too high

Answer

Using dry skin without prep

Question 2

When performing a 12-lead ECG, the precordial lead V1 is placed at which anatomical location?

Accepted Answer

Fourth intercostal space, right sternal border

Answer

Fifth intercostal space, midaxillary line

Answer

Third intercostal space, left sternal border

Answer

Fifth intercostal space, midclavicular line

Question 3

A patient's spirometry results show FEV1/FVC ratio below 70%. This finding is MOST consistent with:

Accepted Answer

Obstructive lung disease

Answer

Restrictive lung disease

Answer

Normal pulmonary function

Answer

Pulmonary hypertension

Question 4

Which of the following is the MOST important instruction to give a patient before a fasting lipid panel?

Accepted Answer

Avoid all food and beverages except water for 9–12 hours before the test

Answer

Drink plenty of water the morning of the test

Answer

Avoid drinking water for 8 hours

Answer

Take all medications with juice before the test

Question 5

When a point-of-care glucose meter gives a quality control result outside the acceptable range, the medical assistant should:

Accepted Answer

Repeat the QC test, and if still out of range, take the meter out of service and notify the supervisor

Answer

Report the patient result anyway

Answer

Recalibrate the meter and proceed with patient testing

Answer

Document the QC failure and continue testing

Question 6

What does a positive Monospot (heterophile antibody) test indicate?

Accepted Answer

Infectious mononucleosis

Answer

Streptococcal pharyngitis

Answer

Influenza A

Answer

Hepatitis B