Correct Answer: A

Rationale: The correct answer is A: Consider cultural differences during this assessment. In many Asian cultures, avoiding direct eye contact is a sign of respect rather than depression. The nurse should be culturally sensitive and understand that different cultures have varying communication norms. By considering cultural differences, the nurse can build rapport and trust with the patient. Asking the patient to make eye contact (B) may be perceived as disrespectful and may hinder effective communication. Continuing with the interview and assuming depression (C) without further assessment is premature and may lead to misdiagnosis. Notifying the health care provider for a psychological evaluation (D) is not necessary at this stage as the behavior observed may be culturally influenced.

Correct Answer: B

Rationale: The correct answer is B because a Snellen chart reading of 20/80 means the patient can see at 20 feet what a normal eye can see at 80 feet. This indicates that the patient's vision is below average. Choice A is incorrect because it reverses the numerator and denominator. Choice C is incorrect because it does not accurately represent the Snellen chart findings. Choice D is incorrect because 20/80 is not considered normal vision.

Correct Answer: D

Rationale: The correct answer is D: Calcium. Calcium is necessary for the chemical clotting process because it plays a crucial role in the activation of various clotting factors, leading to the formation of a blood clot. Without sufficient calcium, the clotting cascade would not be able to proceed effectively. Iron (choice A) is essential for red blood cell production, not clotting. Potassium (choice B) and Sodium (choice C) are important for various physiological functions but are not directly involved in the clotting process.

Correct Answer: B

Rationale: The correct answer is B: 2 to 3 weeks. Alopecia (hair loss) is a common adverse reaction of chlorambucil, typically occurring 2 to 3 weeks after the first administration. This is due to the drug's effect on rapidly dividing cells, including hair follicles. Immediate onset (Choice A) is unlikely as it takes time for the drug to affect hair growth. One week (Choice C) is too soon for alopecia to manifest. One month (Choice D) is too long as alopecia usually occurs earlier. Therefore, the correct window for alopecia onset after chlorambucil administration is 2 to 3 weeks.

Correct Answer: A

Rationale: The correct answer is A: Consider cultural differences during this assessment. In many Asian cultures, avoiding direct eye contact is a sign of respect and humility, especially when speaking to authority figures. By being aware of this cultural norm, the nurse can avoid misinterpreting the patient's behavior as a sign of depression or dishonesty. Asking the patient to make eye contact (choice B) may make the patient uncomfortable and disrupt the therapeutic relationship. Continuing with the interview and documenting depression (choice C) without considering cultural differences can lead to inaccurate assessment and inappropriate interventions. Notifying the health care provider for a psychological evaluation (choice D) is premature and unnecessary without first understanding the cultural context of the patient's behavior.