Correct Answer: B

Rationale: The correct answer is B: 20,000/ul. A platelet count below 20,000/ul puts the client at the highest risk for cerebral hemorrhage due to severe thrombocytopenia. Platelets are essential for blood clotting, and a low count increases the risk of spontaneous bleeding, especially in critical organs like the brain. Choices A, C, and D have platelet counts that are higher than the critical level of 20,000/ul, so they do not pose as high a risk for cerebral hemorrhage. Option D, 500/ul, is extremely low and would likely lead to severe bleeding, but the critical threshold for cerebral hemorrhage is considered to be around 20,000/ul.

Correct Answer: C

Rationale: Rationale: 1. Insulin is a hormone produced by beta cells of the pancreas. 2. Beta cells are responsible for monitoring blood glucose levels and secreting insulin in response to high glucose levels. 3. Insulin helps regulate blood glucose by facilitating glucose uptake into cells. 4. Adenohypophysis secretes other hormones, not insulin. 5. Alpha cells of the pancreas secrete glucagon, not insulin. 6. Parafollicular cells of the thyroid secrete calcitonin, not insulin. Summary: Choice C is correct because insulin is indeed secreted from the beta cells of the pancreas. Choices A, B, and D are incorrect as they do not secrete insulin or are related to other hormones.

Correct Answer: A

Rationale: Step-by-step rationale: 1. Allowing the client to grasp the nurse's hand firmly assesses grip strength and motor coordination. 2. This step helps evaluate the client's ability to follow instructions and perform a coordinated motor task accurately. 3. Assessing grip strength is essential in determining any muscle weakness or neurological deficits. 4. It also provides insight into the client's motor function and coordination abilities. Summary: - Choice B is incorrect because it focuses on sensory functions rather than motor functions. - Choice C assesses fine motor skills, not grip strength and coordination. - Choice D evaluates cognition and logic, which are not directly related to motor function assessment.

Correct Answer: A

Rationale: The correct answer is A because it demonstrates data validation in making a nursing clinical decision. The nurse assesses the time of the last dressing change and compares it with the appearance of old and new drainage. This process ensures that the decision to remove the wound dressing is based on accurate and validated data, leading to appropriate patient care. Choice B is incorrect because it does not involve data validation. The decision is driven by increased pain and family requests, without verifying the underlying cause. Choice C is incorrect as it involves responding to a patient's reported symptom (leg cramps), but it does not involve data validation in making the clinical decision. Choice D is incorrect as it relies solely on the patient's report of decreased mobility without further data validation.

Correct Answer: A

Rationale: The correct answer is A: An IV line is inserted to provide access to a vein. In shock, adequate intravenous access is crucial to administer fluids and medications rapidly. This helps stabilize the client's condition by restoring blood volume and improving circulation. Choice B is incorrect as immobilization is not a primary intervention for shock in this scenario. Choice C, traction, is not appropriate for managing shock but rather for stabilizing spinal cord injuries. Choice D, using a turning frame, is not relevant to managing shock and does not address the immediate need for fluid resuscitation.