Correct Answer: D

Rationale: When interpreting visual acuity testing results using the Snellen chart, the recorded numeric fraction represents the distance the client is standing from the chart and the distance a normal eye could read that particular line. A reading of 20/80 means that the client can read at 20 feet what a client with normal vision can read at 80 feet. This indicates visual impairment but does not meet the criteria for legal blindness, which is defined as best-corrected vision in the better eye of 20/200 or worse. Normal visual acuity is 20/20. Therefore, the correct interpretation is that the client can read at a distance of 80 feet what a client with normal vision can read at 20 feet. Choice A is incorrect because 20/80 does not meet the criteria for legal blindness. Choice B is incorrect as the client's vision is impaired. Choice C is incorrect because it reverses the interpretation of the fraction.

Correct Answer: D

Rationale: Breast self-examination (BSE) should be performed after the menstrual period, specifically on the seventh day of the menstrual cycle, when the breasts are smallest and least congested. This timing facilitates the easier detection of any abnormalities. Performing BSE at the onset of menstruation (Option A) can lead to false results due to hormonal changes affecting breast tissue. Performing it every month during ovulation (Option B) is not recommended as breast tissue may be more tender and lumpy during this time. Conducting weekly examinations at the same time of day (Option C) is unnecessary and can lead to unnecessary anxiety for the client.

Correct Answer: C

Rationale: This client is at risk for altered body image due to chemotherapy-induced hair loss. A wig can assist in coping with this change. It is advisable for the client to shop for a wig before hair loss occurs to better match color and style. Waiting until all hair falls out may lead to stress and limited options in finding a suitable wig. Choices A, B, and D are accurate. Understanding the timing of susceptibility to infection, maintaining oral health before chemotherapy, and staying hydrated are important aspects of care during chemotherapy. Therefore, the statement 'I should wait until all my hair falls out to purchase a wig' requires additional follow-up and education.

Correct Answer: A

Rationale: Diltiazem belongs to the class of calcium-channel blockers, not NSAIDs, ACE Inhibitors, or Beta-Blockers. Calcium-channel blockers like Diltiazem are used to treat conditions such as hypertension by relaxing blood vessels and increasing the supply of blood and oxygen to the heart. Therefore, the correct classification for Diltiazem is a Calcium-Channel Blocker. NSAIDs, ACE Inhibitors, and Beta-Blockers belong to different classes of drugs with distinct mechanisms of action and therapeutic uses, making them incorrect choices for Diltiazem.

Correct Answer: A

Rationale: The correct answer is A: Firm pressure. When the sinuses are normal, the client is expected to feel firm pressure during palpation. Pain during palpation of the sinuses is indicative of acute sinusitis, not a normal finding. Pain behind the eyes and pressure producing an acute headache are symptoms of acute sinusitis, not sensations felt during sinus palpation in normal sinuses.