Correct Answer: A

Rationale: The 45-year-old father who smokes and has high cholesterol is at a higher risk for cardiovascular disease due to multiple risk factors. Smoking and high cholesterol are significant contributors to the development of cardiovascular issues. Prioritizing his evaluation and intervention is crucial to address these modifiable risk factors. The other family members, though they may have risk factors as well, do not present with the same level of immediate risk based on the information provided.

Correct Answer: D

Rationale: The correct answer is D, the serum ammonia level of 180 mcg/dL. An elevated serum ammonia level indicates hepatic dysfunction and can lead to hepatic encephalopathy, which is a medical emergency requiring immediate intervention. Options A, B, and C are within normal ranges or slightly abnormal values for clients with cirrhosis and do not pose an immediate threat. Serum albumin levels may indicate malnutrition, prothrombin time may reflect liver synthetic function, and hemoglobin levels can be affected by various factors but do not require immediate intervention in this scenario.

Correct Answer: A

Rationale: Recognizing signs of infant dehydration is crucial for ensuring the health and well-being of infants. Dehydration can be life-threatening for infants if not addressed promptly. Proper diaper changing techniques, while important for hygiene, can be learned incrementally. The immunization schedule and breastfeeding positions are also essential topics, but identifying signs of dehydration takes precedence as it requires immediate attention to prevent serious complications.

Correct Answer: D

Rationale: The correct answer is D. Documentation of client education in the nursing record provides information on the implementation and progress of the educational program, which is crucial for evaluating its process. Choices A and B focus on individual client assessment rather than program evaluation. Choice C, community census data, is not directly related to evaluating the process of the prevention education program for older adults at risk for substance abuse.

Correct Answer: D

Rationale: The correct answer is D. Chest pain radiating to the left arm can be a sign of myocardial infarction (heart attack) and requires immediate intervention. This symptom is known as a classic presentation of a heart attack and warrants urgent medical attention to prevent further cardiac damage. Choices A, B, and C are not directly indicative of an acute cardiac event and may not require immediate intervention in this scenario. While heart rate, blood pressure, and respiratory rate are important vital signs to monitor, they do not specifically indicate the urgency associated with chest pain radiating to the left arm in a patient with a history of coronary artery disease.