A hospitalized patient who has received numerous antibiotics is being assessed by the nurse, who notes that his tongue appears black and hairy. Which of the following would the nurse say to the patient?

Correct Answer: C

Rationale: The correct answer is C: "This is a fungal infection caused by all the antibiotics you've received." The black, hairy tongue is a known side effect of prolonged antibiotic use, which disrupts the balance of normal oral flora and predisposes to fungal overgrowth, specifically of the yeast Candida. Antibiotics can eliminate the competing bacteria that normally keep Candida in check. Therefore, the patient's symptoms are most likely due to a fungal infection related to antibiotic therapy, rather than a bacterial issue or temporary overgrowth of hair. Biopsy is not necessary as the condition is commonly seen in this context and can be managed with appropriate treatment for fungal overgrowth.

Correct Answer: B

Rationale: The correct answer is B: increased vascularity in the upper respiratory tract as a result of the pregnancy. During pregnancy, hormonal changes lead to increased blood flow in the body, including the nasal passages, causing them to become more sensitive and prone to bleeding. This explains why the woman is experiencing more nosebleeds. Incorrect Choices: A: coagulation problems in the patient - This is incorrect as pregnancy is associated with hypercoagulability rather than coagulation problems. C: increased susceptibility to colds and nasal irritation - While pregnancy can lower immunity, this does not directly cause nosebleeds. D: inappropriate use of nasal sprays - This is not relevant to the situation described and does not explain the increased nosebleeds due to pregnancy.

Correct Answer: A

Rationale: Correct Answer: A Rationale: 1. Head control typically develops around 4 months, so it is normal for a 2-month-old to lack this skill. 2. Reassuring the mother that her baby is within the normal developmental range is important for reducing parental anxiety. 3. Avoiding overly alarming responses helps maintain trust and open communication with the parent. Summary: - Choice B is incorrect as it does not address the mother's concern and may come across as dismissive. - Choice C is incorrect as it may unnecessarily worry the mother and lead to undue stress. - Choice D is incorrect as it introduces a serious and unlikely scenario without evidence at this stage of development.

Correct Answer: D

Rationale: The correct answer is D because the movement of extraocular muscles is primarily controlled by cranial nerves III, IV, and VI. CN III controls most of the eye movements, CN IV controls the superior oblique muscle, and CN VI controls the lateral rectus muscle. These nerves work together to coordinate eye movements in all directions. Choices A and B are incorrect because age or cataracts do not directly impact the stimulation of extraocular muscles. Choice C is incorrect as CNs I and II are not involved in controlling extraocular muscle movement.

Correct Answer: C

Rationale: The correct answer is C: Pull the pinna up and back before inserting the speculum. This is because pulling the pinna up and back straightens the auditory canal, allowing for easier and more accurate insertion of the speculum without causing discomfort or injury. Option A is incorrect as tilting the head forward may obstruct the view. Option B is incorrect as maintaining traction is essential for stability. Option D is incorrect as using the smallest speculum may not provide a clear view or proper insertion depth.