Which of the following is a true statement about assessing blood pressure by palpation?

Correct Answer: D

Rationale: When assessing blood pressure by palpation, it is important to note that only the systolic blood pressure can be determined accurately using this method. Diastolic blood pressure cannot be reliably assessed through palpation. The palpation technique is particularly useful in situations where traditional blood pressure measurement methods are challenging, such as in infants, small children, or individuals with low blood pressure that is difficult to hear. Hypertension, a common condition characterized by elevated blood pressure, is typically assessed using auscultation rather than palpation. Therefore, the correct statement is that only the systolic blood pressure can be assessed through palpation.

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.

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.

Correct Answer: C

Rationale: The water seal of a chest tube acts as a one-way valve. Air bubbles in the water seal indicate a leak between the client and the chamber. The nurse should briefly clamp the tube near the client's chest to locate the source of the leak. Once identified, the nurse should unclamp the tubing and notify the physician immediately. Choice A is incorrect because air bubbles in the water seal chamber are not a normal finding and indicate a leak. Choice B is incorrect as stripping the tubing could aggravate the issue and is not the initial appropriate action. Choice D is incorrect as it does not address the immediate need to locate and address the leak.

Correct Answer: C

Rationale: When caring for a client with a broken femur in a traction splint, turning the client to a side-lying position is not recommended. This client is at risk of skin breakdown and complications due to the injury, making it important to prevent unnecessary movement that may increase the risk of injury or discomfort. Palpating the temperature of both feet helps in assessing circulation, evaluating pulses bilaterally ensures perfusion to the extremities, and relieving heel pressure by placing a pillow under the foot helps in reducing pressure points and preventing complications like pressure ulcers. Therefore, the correct answer is turning the client to a side-lying position as it is not a recommended intervention in this scenario.