Correct Answer: A

Rationale: Step-by-step rationale for why choice A is correct: 1. Laryngeal cancer is strongly linked to smoking and alcohol consumption. 2. Both smoking and alcohol use are modifiable risk factors, meaning they can be prevented. 3. By avoiding smoking and excessive alcohol intake, individuals can significantly reduce their risk of developing laryngeal cancer. 4. Therefore, laryngeal cancer is considered one of the most preventable types of cancer. Summary of why the other choices are incorrect: B. Inhaling polluted air can be a risk factor for laryngeal cancer, so this statement is inaccurate. C. Laryngeal cancer occurs more frequently in men than women, so this statement is incorrect. D. Squamous cell carcinoma, not adenocarcinoma, is the most common type of laryngeal cancer, making this statement incorrect.

Correct Answer: A

Rationale: The correct answer is A: Universal blood and body fluid precautions. This is recommended by the CDC to prevent the spread of HIV because the virus can be present in blood and certain body fluids. Universal precautions involve treating all blood and body fluids as potentially infectious. Incorrect choices: B: Body systems isolation - This is not specific to preventing the spread of HIV and is not recommended by the CDC. C: Laminar flow room during active infection - This is not a standard recommendation for preventing the spread of HIV. D: Needle and syringe precautions - While important in preventing needlestick injuries, it is not the primary method recommended by the CDC for preventing the spread of HIV.

Correct Answer: D

Rationale: The correct answer is D: Reduce airway inflammation. Corticosteroids like methylprednisolone are used in emphysema to reduce inflammation in the airways, which can help improve lung function and symptoms. Corticosteroids work by suppressing the immune response that leads to inflammation in the airways. This can help decrease swelling, mucus production, and constriction of the airways, all of which contribute to the symptoms of emphysema. Dry secretions (choice A) and improving oxygen-carrying capacity (choice B) are not the primary purposes of corticosteroid treatment in emphysema. Treating infection that causes a low level of hemoglobin (choice C) is not relevant to corticosteroid treatment for emphysema.

Correct Answer: D

Rationale: The correct answer is D: The patient is able to ambulate 25 feet without pain. This outcome indicates successful plan implementation for impaired mobility due to nerve compression. Ambulating without pain shows improved mobility and nerve compression relief. Choices A, B, and C do not directly address mobility improvement. Choice A focuses on pain level, which is important but not a direct measure of mobility. Choice B refers to upper extremities, not the lower extremities affected by lumbar disk herniation. Choice C addresses medication management, not mobility improvement.

Correct Answer: B

Rationale: The correct answer is B: Expressive aphasia and paralysis on the left side of the body. In a right-handed person, the left side of the brain controls language (Broca's area) and motor function for the right side of the body. A stroke affecting the left side of the cortex would lead to expressive aphasia (difficulty speaking) due to damage to Broca's area and paralysis on the right side of the body due to motor function impairment. Choices A, C, and D are incorrect because they do not align with the known neurological functions of the brain regions affected by the stroke.