Medical Assisting II | EKG |NHA Exam Study with Verified Solution 2025
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Course
Nha phlebotomy
Institution
Nha Phlebotomy
Medical Assisting II | EKG |NHA Exam
Study with Verified Solution 2025
A medical assistant is performing an EKG on a patient. Where should the V1 lead be placed?
The V1 lead should be placed in the fourth intercostal space, just to the right of the sternum.
What action should a medical assis...
Medical Assisting II | EKG |NHA Exam
Study with Verified Solution 2025
A medical assistant is performing an EKG on a patient. Where should the V1 lead be placed?
The V1 lead should be placed in the fourth intercostal space, just to the right of the sternum.
What action should a medical assistant take if the EKG tracing shows a wandering baseline?
Ensure the electrodes are securely attached and check for patient movement or improper
electrode placement.
During a stress test, the patient begins to experience chest pain and shortness of breath. What
should the medical assistant do?
Immediately stop the test and notify the provider.
Where is the ground electrode placed in a standard 12-lead EKG?
The ground electrode is placed on the right leg.
What is the normal paper speed setting for recording an EKG?
The standard paper speed is 25 mm/second.
What is the medical assistant’s role in preparing a patient for Holter monitoring?
1
, Instruct the patient to keep a diary of all activities and symptoms during the monitoring
period and to avoid getting the monitor wet.
What should a medical assistant do if a patient reports feeling faint during an EKG?
Stop the procedure, help the patient to a safe position, and monitor their vital signs.
In a normal sinus rhythm, what should the P wave represent?
The P wave represents atrial depolarization.
What is the standard gain (amplitude) setting on an EKG machine?
The standard gain is set to 10 mm/mV.
Where should the V4 lead be placed during a 12-lead EKG?
The V4 lead should be placed in the fifth intercostal space at the midclavicular line.
What should a medical assistant do if a patient’s skin is too oily for electrode placement?
Clean the skin with alcohol wipes to remove excess oil and ensure proper electrode adhesion.
What does the QRS complex represent on an EKG?
The QRS complex represents ventricular depolarization.
2
, A medical assistant notices that an EKG tracing shows electrical interference. What could be a
possible cause?
Electrical devices such as cell phones or computers near the EKG machine can cause
interference.
What is the medical assistant’s role during an exercise stress test?
Monitor the patient’s vital signs, assist with equipment, and report any abnormalities to the
provider.
Where should the V2 lead be placed during a 12-lead EKG?
The V2 lead should be placed in the fourth intercostal space at the left of the sternum.
What could cause somatic tremors on an EKG tracing?
Patient movement or muscle tremors can cause somatic tremors.
What is the correct placement for the V6 electrode?
The V6 electrode is placed at the midaxillary line in the same horizontal plane as V4 and V5.
What should a medical assistant instruct a patient regarding food, drink, and medication before a
stress test?
Advise the patient to avoid caffeine, alcohol, and heavy meals before the test, and consult
their provider about taking medications.
3
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