Correct Answer: D

Rationale: The correct action for the nurse to take first is to obtain a Doppler and recheck the pedal pulses. This is the correct choice because it allows the nurse to further assess the circulation in the lower extremities. By using a Doppler, the nurse can accurately detect the presence or absence of pedal pulses, which is crucial in evaluating the severity of the patient's condition. This step provides objective data that can guide the next course of action. Choice A is incorrect because emergency surgery should not be anticipated without further assessment. Choice B is incorrect as assessing apical and radial pulses is not relevant in this situation. Choice C is incorrect as elevating the foot of the bed and applying warm compress may not address the underlying circulation issue.

Correct Answer: B

Rationale: Step 1: High cholesterol levels contribute to the buildup of plaque in arteries, leading to atherosclerosis and increasing the risk of coronary artery disease. Step 2: Atherosclerosis can result in a blockage of blood flow to the heart, causing a myocardial infarction (MI). Step 3: Age is a risk factor for CAD but not directly linked to MI development. Step 4: Medication usage may impact risk factors but is not a direct cause of MI. Step 5: Gender can influence risk but is not the primary factor in MI development.

Correct Answer: C

Rationale: The correct answer is C (5 years) because ALS is a progressive and fatal neurodegenerative disease. The median life expectancy for most ALS patients is around 3-5 years from the onset of symptoms. Choice A (3 years) is too short for 50% of patients. Choice B (10 years) and Choice D (20 years) are longer than the typical life expectancy for ALS patients, making them incorrect. The progression of ALS varies among individuals, but statistically, 50% of patients would be expected to live around 5 years after diagnosis.

Correct Answer: C

Rationale: The correct answer is C: Bacon. Bacon contains the highest kilocalorie among the given choices due to its high fat content. Fat provides 9 kilocalories per gram, while carbohydrates (like in bread and apple) provide 4 kilocalories per gram and protein (like in chicken) provides 4 kilocalories per gram. Bacon, being high in fat, has more kilocalories compared to the other choices. Summary: A: Apple - Low in fat, primarily consists of carbohydrates, hence lower in kilocalories. B: Chicken - Contains protein, lower in kilocalories compared to fat, hence not the highest kilocalorie choice. D: Bread - Mainly consists of carbohydrates, lower in kilocalories compared to fat, making it not the highest kilocalorie choice.

Correct Answer: A

Rationale: The correct answer is A: Peripheral neuropathy. Didanosine (ddl) can cause peripheral neuropathy as a side effect, which can exacerbate existing neuropathy. The client's history of peripheral neuropathy warrants caution with this drug to prevent further nerve damage. Incorrect choices: B: Hypertension - Didanosine is not contraindicated in hypertension. C: Diabetes mellitus - While monitoring blood sugar levels is important, didanosine does not directly affect diabetes. D: Asthma - Didanosine does not have a significant impact on asthma. In summary, the client's pre-existing peripheral neuropathy makes it important to exercise caution with didanosine to avoid worsening this condition.