HESI Fundamentals Exam Test Bank

Correct Answer: D

Rationale: Maintaining sterile technique when handling a central venous catheter is crucial in preventing infections. This action helps minimize the introduction of pathogens into the catheter site, reducing the risk of contamination and subsequent infection. Changing the catheter dressing every 72 hours, while important, does not directly address the prevention of infection at the insertion site. Flushing the catheter with heparin solution daily helps prevent occlusion but does not primarily focus on infection prevention. Ensuring the catheter is clamped when not in use is essential for preventing air embolism but does not directly relate to infection control.

Correct Answer: A

Rationale: The correct answer is A: Trying to increase independence. Toddlers around the age of 2 often exhibit behaviors like temper tantrums and saying 'no' as they are asserting their independence and autonomy. This behavior is a normal part of their developmental stage where they are starting to explore and assert their own preferences and desires. Choice B, developing a sense of trust, is more relevant to infants during the trust vs. mistrust stage. Choice C, establishing a new identity, is typically associated with adolescence and identity formation. Choice D, attempting to master a skill, is more indicative of a child trying to learn and develop new abilities rather than the behavior described in the scenario.

Correct Answer: D

Rationale: The correct action for the nurse manager in this situation is to request an immediate private meeting with the healthcare provider and staff nurse. By doing so, the nurse manager can facilitate a more appropriate and professional discussion of the issues at hand in a private setting. Option A, which involves addressing the behavior quietly, may not effectively resolve the issue as it needs to be openly discussed. Option B is not advisable as the nurse manager should intervene to address the situation and provide support. Option C, notifying other administrative personnel, may escalate the situation unnecessarily before attempting to resolve it directly with the involved parties.

Correct Answer: A

Rationale: In situations where a client is in the terminal stage of cancer and crying, it is essential for the nurse to provide comfort and support. Sitting with the client and holding their hand can offer a sense of presence and emotional support, showing empathy and understanding. Encouraging the client to talk about their feelings (choice B) is also important, but initially, non-verbal support through physical presence can be comforting. Leaving the client alone to cry (choice C) can make the client feel abandoned and unsupported during a vulnerable moment. Ignoring the client's crying (choice D) is not appropriate and lacks compassion and empathy, which are crucial in end-of-life care.

Correct Answer: A

Rationale: A positive Chvostek's sign is a clinical indication of low calcium levels, known as hypocalcemia. This sign is elicited by tapping the facial nerve anterior to the ear, resulting in facial muscle twitching. The correct laboratory finding associated with a positive Chvostek's sign is decreased calcium. Elevated potassium (Choice B) is not typically associated with Chvostek's sign but can be seen in conditions like renal failure. Increased sodium (Choice C) is not directly related to Chvostek's sign and is more commonly associated with hypernatremia. Low hemoglobin (Choice D) is not the expected laboratory finding in a client with a positive Chvostek's sign; instead, it suggests anemia, which is unrelated to this clinical manifestation.