A nurse is admitting a client who reports chest pain and has been placed on a telemetry monitor. Which of the following should the nurse analyze to determine whether the client is experiencing a myocardial infarction?
Twave
Ssegment
QRS duration
PR interval
The Correct Answer is B
The Ssegment is the portion of an electrocardiogram (ECG) that represents early ventricular repolarization, which occurs after ventricular contraction and before ventricular relaxation. The Ssegment can be elevated or depressed in cases of myocardial infarction (MI), indicating ischemia or injury to the myocardium due to reduced blood flow or oxygen supply.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A 2-g sodium diet means limiting sodium intake to no more than 2000 mg per day. Sodium is found in salt and many processed foods, such as canned vegetables, soups, sauces, and baked goods. Sodium can cause fluid retention and worsen heart failure symptoms, such as shortness of breath, swelling, and fatigue. Therefore, the client should avoid adding salt or salt substitutes (such as baking soda) to their foods and choose fresh or frozen vegetables over canned ones. Lemon juice is a low-sodium alternative that can add flavor to foods without increasing sodium intake.
Correct Answer is B
Explanation
To assess a client for a positive Chvostek’s sign, the nurse should tap gently on the cheek, specifically two centimeters in front of the ear, over the facial nerve (also known as CN VII). This test is used to check for hypocalcemia, a condition that can lead to tetany, which is the involuntary contraction of muscles. A twitch of the facial muscles in response to this tapping indicates a positive Chvostek’s sign. This is particularly relevant following a thyroidectomy, as the procedure can indirectly affect the parathyroid glands, potentially leading to hypocalcemia
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