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Which of the following should appear on an EKG tracing if a patient's arm moved during recording?

A.

Alternating current (AC) interference

B.

Arrhythmia

C.

Somatic tremor

D.

Interrupted baseline

Answer and Explanation

The Correct Answer is C

A. Alternating current (AC) interference: AC interference is caused by electrical equipment near the EKG machine and appears as uniform, small, rapid spikes. It is not caused by patient movement.
B. Arrhythmia: An arrhythmia refers to an abnormal heart rhythm and is related to cardiac function, not patient movement.
C. Somatic tremor: Somatic tremor is caused by voluntary or involuntary muscle movement, such as a patient moving their arm, which creates artifact on the EKG tracing that appears as irregular, erratic spikes.
D. Interrupted baseline: An interrupted baseline occurs when the electrical connection is lost, often due to a lead falling off, not due to patient movement.


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Related Questions

Correct Answer is B

Explanation

A. Tilt the head back slightly: Tilting the head back slightly is not the standard technique for administering ear drops to adolescents and adults.
B. Gently pull the pinna up and back: Pulling the pinna (outer ear) up and back helps to straighten the ear canal in adolescents and adults, allowing the drops to reach the eardrum more effectively.
C. Tilt the head slightly forward: Tilting the head slightly forward is not the correct position for administering ear drops.
D. Gently pull the pinna down and back: Pulling the pinna down and back is used for children under 3 years old, not for older children or adults

Correct Answer is B

Explanation

A. "Avoid alcohol for 48 hours prior to the test.": While avoiding alcohol may be generally recommended for some tests, fasting is the primary requirement for a glucose tolerance test (GTT).
B. "Do not eat for 8 hours prior to the test.": A GTT typically requires fasting for 8-12 hours to accurately measure glucose levels.
C. "Limit physical exertion for 24 hours prior to the test.": Physical exertion is not typically a specific concern for a GTT, but fasting is essential.
D. "Eat a high carbohydrate meal 3 hours prior to the test.": A high carbohydrate meal is not required; fasting is necessary before the test.

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