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: 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 correct answer is, 'It is better for me to have high LDL levels and low HDL levels.' This statement indicates a need for further teaching because high LDL levels contribute to atherosclerosis, while high HDL levels can protect against heart disease. The client should understand the importance of lowering LDL levels and increasing HDL levels to maintain good heart health. Choice A is correct as desiring HDL levels over 50 is a positive goal. Choice B is correct as it reflects the ideal scenario of high HDL and low LDL levels. Choice D is correct as a total cholesterol below 200 is a common goal for heart health. Therefore, Choice C is incorrect as it suggests an opposite and unhealthy relationship between LDL and HDL levels.

Correct Answer: A

Rationale: When caring for a client with swallowing difficulties, it is crucial to prevent aspiration of food into the lungs. Appropriate interventions include auscultating lung sounds every shift and after feedings to assess for any changes in breathing patterns, maintaining suction equipment at the client's bedside in case of difficulties, and providing instruction on swallowing exercises. Keeping the client in an upright position at all times is not necessary and may not always be feasible or comfortable for the client. This rigid requirement is not part of the standard care protocol for managing swallowing difficulties.

Correct Answer: D

Rationale: The correct response is, 'We don't fully understand the cause, but mental illnesses do seem to run in the family.' Current research suggests that while genetics play a role in the development of mental illnesses like bipolar disorder, it is not the sole factor. Environmental influences, life experiences, and other non-genetic factors also contribute significantly to the manifestation of mental disorders. Choices A, B, and C provide incorrect information that is not supported by current research. Traumatic childhood experiences, contracting a virus during childhood, and an overactive immune system are not established causes of bipolar disorder or mental illnesses in general.