Nursing Elites

1. A client with hyperkalemia may exhibit peaked T waves on an electrocardiogram. This manifestation is an early sign of high potassium levels, but the diagnosis should not be based on this aspect alone. Untreated, hyperkalemia can lead to progressively worsening cardiac instability.

• A. A lumbar puncture takes a sample of cerebrospinal fluid from the back, which will be analyzed by the lab.
• B. The physician will insert a needle at the level of L4-L5 in the spinal cord.
• C. The client should lie flat on their back for a specific period following the procedure.
• D. The risks of the procedure include headache, back pain, and infection.

Correct answer: B

Rationale: A lumbar puncture is performed to obtain cerebrospinal fluid for analysis to investigate various conditions affecting the client. During the procedure, the client is typically positioned on their side or sitting leaning over a table with their back rounded. The physician inserts a needle into the back around the L4-L5 vertebrae to collect the sample. Option A is incorrect because a lumbar puncture does not draw blood but instead collects cerebrospinal fluid. Option C is incorrect as the client should not necessarily lie flat for 24 hours post-procedure. Option D is incorrect as the common risks of a lumbar puncture include headache, back pain, and potential infection, not nausea, rash, or hypotension.

2. When a blood pressure cuff is too wide for a client's arm, what type of reading might this blood pressure cuff produce?

• A. A normal reading
• B. An abnormally low reading
• C. An abnormally high reading
• D. A fluctuating reading

Correct answer: B

Rationale: When a blood pressure cuff is too wide for a client's arm, it may produce an abnormally low blood pressure reading. This occurs because the oversized cuff can lead to an underestimation of blood pressure. It is essential to ensure that the cuff fits appropriately to obtain an accurate reading. An abnormally high reading (Choice C) is less likely with an oversized cuff, as it generally leads to lower readings. A normal reading (Choice A) is unlikely due to the inaccuracies caused by the oversized cuff. A fluctuating reading (Choice D) is not a typical result of using a cuff that is too wide; instead, it usually leads to consistently low readings.

3. Who owns a patient's x-rays?

• A. The patient
• B. The doctor
• C. The facility that performed the procedure
• D. None of the above

Correct answer: C

Rationale: X-rays are typically owned by the facility that conducts the procedure, not the patient or the doctor. The facility that performs the procedure is responsible for maintaining and storing the x-rays as part of the patient's medical records. The patient does not own the x-rays since they are part of their medical record and not a physical possession. The doctor also does not own the x-rays as they are generated as a result of the medical procedure conducted at the facility, making choice C the correct answer.

4. A client is seen in the emergency room as a victim of suspected domestic violence. The nurse's aide brings the client to a center curtained area, gives her a gown to change into, and asks her to wait for the nurse. What is the most appropriate action of the nurse upon arrival?

• A. Ask the client to undress to assess for injuries
• B. Take the client into a private room
• C. Notify the police to file a report
• D. Notify the house supervisor to keep security on alert

Correct answer: B

Rationale: When dealing with a client suspected of domestic violence, it is crucial to provide privacy and a safe environment. Taking the client into a private room allows for a confidential conversation and assessment without compromising the client's safety or dignity. The nurse should prioritize creating a safe space for the client to share information and receive support. Notification of authorities should only occur once a thorough assessment has been conducted to ensure the client's safety and well-being. Option A is incorrect because asking the client to undress should be done with sensitivity and respect for the client's privacy, focusing on assessing injuries rather than visualizing them. Option C is premature as involving the police should be based on a comprehensive assessment and the client's consent. Option D is not the most immediate and direct action required to address the client's immediate needs in a suspected domestic violence situation.

5. A client with adrenal insufficiency has a potassium level of 7.2 mEq/L. Which of the following signs or symptoms might the client exhibit with this result?

• A. Peaked T waves on the ECG
• B. Muscle spasms
• C. Constipation
• D. A prominent U wave on the ECG

Correct answer: A

Rationale: A client with hyperkalemia may exhibit peaked T waves on an electrocardiogram. This manifestation is an early sign of high potassium levels, but diagnosis should not be based on this aspect alone. Untreated, hyperkalemia can lead to progressively worsening cardiac instability. Muscle spasms (Choice B) are more commonly associated with hypocalcemia. Constipation (Choice C) is not a typical sign of hyperkalemia. A prominent U wave on the ECG (Choice D) is associated with hypokalemia, not hyperkalemia.

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