Adult Health Nursing Test Bank

Correct Answer: B

Rationale: The correct answer is B: Lie on the affected area. This position would hinder drainage and increase pressure on the affected area. A: Tilt head to the side if sitting up, is correct as it promotes drainage. C: Putting pillows behind the head can also aid drainage. D: Lying on the non-affected ear can help reduce pressure on the affected side.

Correct Answer: B

Rationale: The correct answer is B: Relieves pain by increasing pain threshold. Meperidine and codeine are opioid analgesics that work by binding to opioid receptors in the brain and spinal cord, thus increasing the pain threshold and reducing the perception of pain. This leads to pain relief without necessarily affecting sexual stimulation (choice A), craving for alcohol (choice C), or concentration/alertness (choice D). The primary physiological effect of these drugs is to modulate the perception of pain, making choice B the most appropriate answer in this context.

Correct Answer: A

Rationale: Rationale: A is the correct answer as it demonstrates therapeutic communication by encouraging Annie to express her feelings and fears. It shows empathy and understanding, allowing Annie to elaborate on her concerns. B is incorrect as it dismisses Annie's fears and implies blame on her parenting. C is incorrect as it focuses on the behavior of the children rather than addressing Annie's emotions. D is incorrect as it places the responsibility on the children to make Annie feel comfortable, rather than addressing her concerns directly.

Correct Answer: C

Rationale: The correct answer is C: Food and water. Typhoid fever is primarily transmitted through contaminated food and water by the bacterium Salmonella typhi. The bacteria are shed in the feces of infected individuals and can contaminate water sources or food prepared with contaminated water. This transmission route aligns with the typical epidemiology of typhoid fever outbreaks. Now, let's discuss why the other choices are incorrect: A: A vector - Typhoid fever is not transmitted by a vector such as mosquitoes or ticks. B: Blood and body fluids - Typhoid fever is not typically spread through blood or body fluids but rather through ingestion of contaminated food or water. D: Air - Typhoid fever is not an airborne disease and is not transmitted through the air.

Correct Answer: A

Rationale: The correct answer is A: Myasthenia gravis. In myasthenia gravis, there is a decrease in acetylcholine receptors at the neuromuscular junction, leading to muscle weakness and fatigue. This occurs due to autoimmune destruction of these receptors. ALS (B) affects motor neurons, not acetylcholine receptors. Guillain-Barre syndrome (C) is an autoimmune disorder affecting peripheral nerves, not neuromuscular junctions. Muscular dystrophy (D) is a genetic disorder causing muscle degeneration, not affecting acetylcholine receptors.