. A client with a suspected left sided heart failure is scheduled to undergo a multigated acquisition scan. Which of the following actions is required before undergoing the test?

Correct Answer: C

Rationale: Rationale: - A: Diuretics are not necessary before the test and may affect test results. - B: Dehydration is not recommended before the test as it can impact cardiac function. - C: Medication to relieve cough is necessary to reduce any potential interference with the scan. - D: Administering analgesics is not required for the test and may not be relevant to the client's condition.

Correct Answer: C

Rationale: Elevating the head of the bed is the correct answer because it helps to promote venous drainage, reduce cerebral edema, and decrease intracranial pressure (ICP). By positioning the patient with the head elevated, gravity assists in preventing further increases in ICP. Encouraging fluids may lead to fluid overload and exacerbate cerebral edema. Providing physical therapy and frequent repositioning may increase ICP by causing unnecessary movement and potential strain on the patient's head and neck.

Correct Answer: A

Rationale: The correct answer is A because a poultice of sodium bicarbonate and water can help neutralize the venom and reduce pain from wasp and bee bites. Sodium bicarbonate has alkaline properties that can counteract the acidic venom. Option B is incorrect as household ammonia can cause skin irritation and should not be applied to insect bites. Option C is incorrect because only option A is a safe and effective treatment for wasp and bee bites. Option D is incorrect as there is a suitable emergency treatment available.

Correct Answer: B

Rationale: The correct answer is B: "I will press the button whenever I feel pain." This answer demonstrates understanding of how patient-controlled analgesia (PCA) works, where the client self-administers medication when needed for pain relief. Option A is incorrect as the machine is programmed with lockout intervals to prevent overdosing. Option C is incorrect as the client should only press the button when experiencing pain, not on a fixed schedule. Option D is incorrect as PCA does not guarantee complete pain elimination. The key in PCA is empowering the client to self-administer medication based on their pain level.

Correct Answer: D

Rationale: The correct answer is D. Bacterial meningitis alters intracranial physiology by causing cerebral edema, raised intracranial pressure, and increased permeability of the blood-brain barrier. Cerebral edema is the accumulation of fluid in the brain tissue, leading to increased pressure. Raised intracranial pressure occurs due to the inflammation and swelling caused by the infection. Increased permeability of the blood-brain barrier allows substances to pass through that would normally be blocked, contributing to the inflammatory response. Therefore, all of these changes are interconnected and commonly observed in bacterial meningitis cases. Choices A, B, and C individually describe specific alterations seen in bacterial meningitis but do not encompass the full spectrum of changes that occur, making them incorrect options.