Correct Answer: B

Rationale: The correct answer is B: 'Eliminate areas of standing water.' This is an essential primary prevention strategy for West Nile virus as it helps prevent the breeding of mosquitoes that spread the virus. Choices A, C, and D are incorrect. Avoiding exposure to deer ticks is more relevant for Lyme disease, using a respiratory mask when cleaning bird coops is not a primary prevention strategy for West Nile virus, and planning outdoor activities after dusk does not directly address the prevention of West Nile virus transmission.

Correct Answer: C

Rationale: The correct answer is monitoring the respiratory rate. Morphine can depress respiratory function, leading to respiratory depression or arrest. Therefore, closely monitoring the client's respiratory rate is crucial to detect any signs of respiratory distress. While blood pressure, heart rate, and temperature are important assessments, in this scenario, respiratory rate takes precedence due to the potential respiratory complications associated with morphine administration.

Correct Answer: A

Rationale: Ensuring proper nutrition and hydration is crucial in preventing pressure ulcers in immobile patients. Adequate nutrition supports tissue health and repair, while hydration helps maintain skin elasticity. While turning the patient every 2 hours is important to prevent pressure injuries, it is not the primary way to address prevention. Using moisture barriers and providing special mattresses or padding are essential components of pressure ulcer prevention, but they are not as fundamental as ensuring proper nutrition and hydration.

Correct Answer: D

Rationale: The correct answer is D. Rinsing the skin with soap and water following exposure to the botulism toxin is crucial as it helps remove the toxin from the skin, preventing further absorption. Choices A, B, and C are incorrect. Immunoglobulin E (IgE) is not used in the management of botulism. Airborne precautions are not necessary for botulism as it is not transmitted through the air. Aminoglycoside medications are not the treatment of choice for botulism.

Correct Answer: C

Rationale: The correct answer is to instruct the client to 'Move slowly when standing up.' Codeine can cause orthostatic hypotension, a drop in blood pressure when changing positions, leading to dizziness or fainting. By advising the client to move slowly when standing up, the nurse helps prevent falls or injuries due to sudden drops in blood pressure. Choices A, B, and D are important instructions as well but not the priority when considering the risk of orthostatic hypotension associated with codeine.