Correct Answer: C

Rationale: The correct answer is C because morphine sulfate is given to a patient with pulmonary edema to reduce anxiety (i) and to reduce preload and afterload (v). Morphine sulfate does not increase blood pressure (ii), relieve chest pain (iii), or strengthen heart contractions (iv) in the context of pulmonary edema. Choice A is incorrect because it includes increasing BP, which is not a reason for giving morphine sulfate in this case. Choice B is incorrect because it includes strengthening heart contractions, which is not a reason for administering morphine sulfate. Choice D is incorrect because it includes relieving chest pain, which is not a primary purpose of giving morphine sulfate to a patient with pulmonary edema.

Correct Answer: B

Rationale: The correct answer is B, "What reasons do you think are contributing to your fatigue?" This question encourages the patient to explore and express their own thoughts and feelings, leading to a more detailed and comprehensive understanding of the underlying causes of their daytime fatigue. A: "Is there anything that you are stressed about right now that I should know?" - This question is more direct and may not necessarily prompt the patient to delve into the specific reasons for their fatigue. C: "What are your normal work hours?" - While relevant, this question focuses solely on work hours and may not uncover other potential factors contributing to the fatigue. D: "Are you sleeping 8 hours a night?" - While sleep is important, this question is too narrow and may not address other possible reasons for the fatigue.

Correct Answer: D

Rationale: Step 1: Hypernatremia is defined by elevated serum sodium levels (>145mEq/L). Step 2: Serum osmolality of 245mOsm/kg is high, consistent with hypernatremia. Step 3: Urine specific gravity below 1.003 indicates dilute urine, a common finding in hypernatremia. Step 4: The combination of elevated serum sodium, high serum osmolality, and low urine specific gravity confirms hypernatremia. Summary: A: Incorrect, as high serum osmolality (not 245mOsm/kg) is associated with hypernatremia. B: Incorrect, as low urine specific gravity (not below 1.003) is seen in hypernatremia. C: Incorrect, as serum sodium needs to be >145mEq/L to indicate hypernatremia.

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: D

Rationale: The correct answer is D: Heart. A potassium level of 6.3 mEq/L indicates hyperkalemia, which can lead to cardiac arrhythmias and even cardiac arrest. The heart is highly sensitive to potassium levels, as it plays a crucial role in regulating the heart's electrical activity. Elevated potassium levels can disrupt this balance, leading to serious cardiac complications. Summary: A: Lungs - Not directly affected by potassium levels. B: Liver - Not directly affected by potassium levels. C: Kidneys - Kidneys regulate potassium levels but are not the most at risk for dysfunction in this scenario.