Free NHA EKG Procedures Questions and Answers — Questions and Answers
Question 1: What is the primary purpose of performing an EKG?
- To assess lung function
- To check for diabetes
- To measure blood pressure
- To evaluate heart rhythm and electrical activity (Correct answer)
Correct answer: To evaluate heart rhythm and electrical activity
An Electrocardiogram (EKG or ECG) is a diagnostic tool that measures and records the electrical activity of the heart over a period of time. Its primary purpose is to evaluate the heart's rhythm, rate, and overall electrical function, helping to detect various cardiac conditions such as arrhythmias, heart attacks, or structural abnormalities. It provides vital, non-invasive information about heart health.
Question 2: How should electrodes be placed for a standard 12-lead EKG?
- Anywhere on the chest
- On specific locations of the limbs and chest as per the standard 12-lead placement (Correct answer)
- Only on the arms and legs
- Randomly on the torso
Correct answer: On specific locations of the limbs and chest as per the standard 12-lead placement
For a standard 12-lead EKG, electrodes must be placed precisely on specific anatomical locations on the patient's limbs (right arm, left arm, right leg, left leg) and chest. This standardized placement ensures accurate recording of the heart's electrical activity from different angles, which is essential for proper diagnosis. Incorrect placement can lead to inaccurate readings and potentially misdiagnosis.
Question 3: What should a healthcare provider do if the EKG shows an irregular rhythm?
- Document the finding and consult with a physician for further evaluation (Correct answer)
- Ignore the irregularity if the patient is asymptomatic
- Repeat the EKG without any additional action
- Inform the patient that the result is normal
Correct answer: Document the finding and consult with a physician for further evaluation
If an EKG shows an irregular rhythm, a healthcare provider must document this finding thoroughly and immediately consult with a physician or supervising nurse. An irregular rhythm can indicate various underlying cardiac issues, and further medical evaluation is necessary to determine the cause and appropriate course of action. It is crucial not to interpret or dismiss such findings without expert medical review.
Question 4: What is the standard paper speed for EKG recordings?
- 10 mm/second
- 25 mm/second (Correct answer)
- 50 mm/second
- 75 mm/second
Correct answer: 25 mm/second
The standard paper speed for EKG recordings is 25 mm/second. This speed is crucial for accurate interpretation of the EKG tracing, as it allows for consistent measurement of intervals and amplitudes of the heart's electrical activity. Deviations from this standard speed would distort the waveform, making diagnosis difficult or impossible and potentially leading to misinterpretation.
Question 5: How should the skin be prepared before placing EKG electrodes?
- Clean the skin with alcohol and apply a thick layer of lotion
- Clean the skin with alcohol and remove any oils or dirt (Correct answer)
- Shave the skin and apply a moisturizing cream
- Scrub the skin with a brush
Correct answer: Clean the skin with alcohol and remove any oils or dirt
Proper skin preparation is crucial for good EKG electrode adhesion and signal quality. Cleaning the skin with alcohol effectively removes oils, dirt, and dead skin cells that can interfere with electrical conduction. This ensures the electrodes stick securely and provides a clear, accurate tracing of the heart's electrical activity.
Free NHA EKG Procedures Questions and Answers
What is the primary purpose of performing an EKG?