Which of the following is most likely benign on breast examination?

Correct Answer: B

Rationale: The correct answer is B: One breast larger than the other is most likely benign on breast examination. This is because breast asymmetry is a common and typically benign finding in women. It is important to note that a significant difference in breast size may warrant further evaluation, but in general, slight variations in size are normal. Now, let's discuss why the other choices are incorrect: A: Dimpling of the skin resembling that of an orange is concerning for peau d'orange appearance, which can be a sign of underlying breast cancer. C: One nipple inverted can be a sign of an underlying breast issue, such as a mass or tumor. D: One breast with a dimple when the patient leans forward can be a sign of an underlying breast abnormality, such as a tumor pulling on the skin. In summary, breast asymmetry (Choice B) is the most likely benign finding, while the other choices may indicate underlying breast issues that require further evaluation.

Correct Answer: B

Rationale: The correct answer is B: Potential congenital deformity. This observation suggests a condition called "low-set ears," which can be a sign of certain congenital anomalies affecting the development of the head and neck structures during fetal growth. It is important to investigate further to rule out any associated syndromes or genetic disorders. Choice A: Normal anatomical variation is incorrect because this positioning is not commonly considered a normal variation in the general population. Choice C: Increased risk of hearing loss is incorrect as the position of the ears alone does not directly correlate with hearing loss. Choice D: No clinical significance is incorrect because this observation warrants further evaluation to assess for potential underlying issues.

Correct Answer: A

Rationale: Rationale: 1. Cefuroxime and nitrofurantoin are safe for use in pregnancy and effective against UTIs. 2. Cefuroxime is a cephalosporin antibiotic, considered safe in pregnancy. 3. Nitrofurantoin is a first-line agent for UTIs in pregnancy due to its safety profile. 4. Ciprofloxacin and tetracycline are contraindicated in pregnancy due to potential harm to the fetus. 5. Amoxicillin is considered safe in pregnancy but not as effective as nitrofurantoin for UTIs.

Correct Answer: B

Rationale: The correct answer is B: A sebaceous cyst. A sebaceous cyst typically presents as a lump underneath the skin that can be squeezed to release a cheesy substance, consistent with Jacob's description. The formation of a prominent dimple when gently pinched is characteristic of a cyst, indicating it is filled with fluid or semi-solid material. Sebaceous cysts are usually benign and can grow slowly over time. Incorrect choices: A: An enlarged lymph node - Unlikely as lymph nodes are typically not associated with cheesy discharge or the formation of a dimple when pinched. C: An actinic keratosis - Unlikely as actinic keratosis is a precancerous skin condition caused by sun exposure, not presenting with cheesy discharge or a dimple. D: A malignant lesion - Unlikely as malignant lesions usually do not produce cheesy discharge and are more aggressive in growth compared to a sebaceous cyst.

Correct Answer: C

Rationale: Step 1: Identify the characteristics of the lesion described - dome-shaped, in dermis, benign, closed sac attached to epidermis. Step 2: A cutaneous cyst fits all these characteristics - it is a benign closed sac in the dermis with attachment to the epidermis. Step 3: Keloid (A) is an overgrowth of scar tissue, not a closed sac lesion. Tophi (B) are deposits of uric acid crystals, not a sac. Chondrodermatitis (D) is inflammation of cartilage and skin, not a closed sac lesion. Summary: A cutaneous cyst is the correct choice as it matches all the characteristics given, while the other options do not fit the description provided.

Correct Answer: C

Rationale: The correct answer is C because Certified Nursing Assistants (CNAs) typically provide the majority of direct patient care in nursing homes. CNAs assist with activities of daily living, monitoring patients' health, and providing emotional support. This is true in most nursing homes as they play a crucial role in patient care. Rationale: - A: Most nurses in nursing homes are not necessarily Registered Nurses (RNs), as there are also Licensed Practical Nurses (LPNs) and Certified Nursing Assistants (CNAs) who provide care. - B: LPNs or LVNs may assist with the patient care plan under the supervision of an RN, but they do not typically develop the plan themselves. - D: Staff turnover is a major issue in nursing homes due to various factors such as workload, stress, and burnout among healthcare workers.

Correct Answer: A

Rationale: The correct answer is A: It is not effective during an acute asthma attack. Salmeterol is a long-acting beta agonist used for maintenance therapy, not for acute attacks. It does not provide immediate relief. Choices B and C are incorrect because salmeterol's onset of action is not immediate, and it may take days to weeks to achieve full effect. Choice D is incorrect because salmeterol should not be used in children under 12 years old.

Correct Answer: B

Rationale: The correct answer is B: Migraines with aura. Estrogen in contraceptives can increase the risk of stroke in patients with migraines with aura due to its effect on blood clotting. Estrogen-progestin contraceptives should be avoided in these patients to reduce the risk of adverse cardiovascular events. Choices A, C, and D do not have a direct contraindication to estrogen-progestin contraceptives based on current guidelines.

Correct Answer: C

Rationale: The correct answer is C: Lower dose of antibiotics. The rationale is that the patient has early renal insufficiency, which means the kidney may have difficulty clearing medications from the body. Therefore, a lower dose of antibiotics is needed to prevent potential drug toxicity. A shorter course of antibiotics (choice A) may not be effective in treating pneumonia adequately. A longer course of antibiotics (choice B) may increase the risk of drug accumulation in the body. A higher dose of antibiotics (choice D) can lead to increased toxicity in a patient with renal insufficiency. Thus, the most appropriate option is to reduce the dose to ensure safe and effective treatment.