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: The correct answer is A: parotid gland. This gland is located in the cheek in front of the ear. It is the largest salivary gland in the human body. The parotid gland secretes saliva into the mouth through Stenson's duct. The other choices are incorrect because Stenson's gland does not exist, the sublingual gland is located under the tongue, and the submandibular gland is located under the mandible. Therefore, the parotid gland is the only gland that fits the description given in the question.

Correct Answer: B

Rationale: Correct Answer: B Rationale: 1. Bluish lips indicate cyanosis, a sign of inadequate oxygen supply. 2. Dark line along gingival margin suggests lead poisoning. 3. The nurse should assess for other signs of inadequate oxygen supply to determine the severity and underlying cause. 4. This finding is not normal and requires further evaluation to prevent complications. Summary: A: Checking hemoglobin for anemia is not the immediate priority when cyanosis and lead poisoning are suspected. C: Assuming this is a normal finding can lead to overlooking a potentially serious condition. D: Carbon monoxide exposure could be a consideration, but assessing for overall oxygen supply is more crucial in this scenario.

Correct Answer: A

Rationale: The correct answer is A: Weber. The Weber test has been found to yield unreliable data recently due to its subjectivity and inconsistency in interpretation. The test involves placing a vibrating tuning fork on the midline of the head to assess lateralization of sound. However, factors like bone conduction and individual perception can influence the results, leading to inaccuracies. Romberg test (B) evaluates balance, Whisper test (C) assesses hearing sensitivity, and Audiometer (D) measures hearing thresholds objectively. These tests are more reliable in providing accurate data compared to the Weber test.

Correct Answer: C

Rationale: The correct answer is C: The purpose of cerumen is to protect and lubricate the ear. Cerumen, commonly known as earwax, acts as a natural barrier to prevent dust, debris, and microorganisms from entering the ear canal. It also helps to lubricate the skin in the ear canal and prevent dryness and itching. Choice A is incorrect because sticky, honey-colored cerumen is not necessarily a sign of infection; it can occur due to various factors. Choice B is incorrect as the presence of cerumen does not solely indicate poor hygiene; everyone produces earwax regardless of hygiene practices. Choice D is incorrect as cerumen can sometimes block the ear canal and impair sound transmission rather than aid it.