You are beginning the examination of the skin on a 25-year-old teacher. You have previously elicited that she came to the office for evaluation of fatigue, weight gain, and hair loss. You strongly suspect that she has hypothyroidism. What is the expected moisture and texture of the skin of a patient with hypothyroidism?

Correct Answer: D

Rationale: The correct answer is D: Dry and rough. In hypothyroidism, there is reduced secretion of sweat and oils, leading to dry skin. The lack of hydration causes the skin to become rough. This correlates with the clinical presentation of fatigue, weight gain, and hair loss, which are common symptoms of hypothyroidism. Choices A and B are incorrect because moisture is reduced in hypothyroidism, resulting in dry skin. Choice C is incorrect because the lack of oils in hypothyroidism leads to rough skin texture, not smooth.

Correct Answer: B

Rationale: The correct answer is B because in Munchausen syndrome by proxy, the patient only exhibits symptoms under the direct care or supervision of the abuser. This is because the abuser intentionally causes or fabricates symptoms in the victim to gain attention or sympathy. In contrast, the other choices are incorrect. A is incorrect because the injury is inflicted by the abuser, not self-inflicted by the patient. C is incorrect as the caregiver is the one perpetrating the abuse. D is incorrect because the abuser is often overly involved and manipulative, rather than inattentive and uncaring.

Correct Answer: B

Rationale: The correct answer is B: Present illness. The statement "I feel really tired" falls under the present illness category because it describes the current health concern the individual is experiencing. This section focuses on the details of the current symptoms, their duration, severity, and any associated factors. It helps in understanding the progression and impact of the current health issue. A: Chief complaint typically refers to the main reason for seeking medical help, usually a symptom or problem that brought the individual to the healthcare provider. C: Personal and social history covers information about the individual's lifestyle, habits, and social support system. D: Review of systems involves systematically asking about symptoms related to different body systems, which is not the case in the given statement.

Correct Answer: A

Rationale: The correct answer is A: Genital herpes. The patient's symptoms of severe burning with urination, fever, lymphadenopathy, and multiple shallow ulcers along the vulva are classic for genital herpes. The new sexual partner and absence of red blood cells or bacteria in the urine support a sexually transmitted infection. The presence of white blood cells in urine and absence of other systemic symptoms help differentiate it from other choices. Condylomata acuminata (choice B) present as warty lesions and do not cause the systemic symptoms described. Syphilitic chancre (choice C) would typically present as a single painless ulcer and is unlikely given the multiple shallow ulcers described. Epidermoid cyst (choice D) does not match the clinical presentation of fever, burning with urination, and lymphadenopathy.

Correct Answer: A

Rationale: The correct answer is A: Extrapyramidal symptoms. Selective serotonin reuptake inhibitors (SSRIs) are not known to cause extrapyramidal symptoms, which are more commonly associated with antipsychotic medications. SSRIs can cause gastrointestinal bleeding, irritation, and hyponatremia in older adults due to their effects on serotonin levels and platelet function. Extrapyramidal symptoms involve movement disorders like tremors and muscle rigidity, which are not typically seen with SSRIs. Therefore, A is the correct answer.

Correct Answer: C

Rationale: The correct answer is C. During the secondary stage of syphilis, a rash marked by red or reddish-brown, penny-sized lesions over the palms and soles is a common clinical manifestation. This rash, known as a syphilitic rash, is a hallmark symptom of secondary syphilis. The rash can also appear on other parts of the body. It is important to note that syphilis progresses through distinct stages, and the secondary stage typically occurs a few weeks to a few months after the initial infection. Now, let's analyze why the other choices are incorrect: A: Absence of symptoms - This is incorrect as syphilis does present symptoms, especially during the secondary stage. B: Single painless lesion, chancre on the genital area - This is characteristic of the primary stage of syphilis, not the secondary stage. D: Poor muscle coordination - This symptom is associated with the late or tertiary stage of syphilis, not the secondary stage

Correct Answer: B

Rationale: The correct answer is B: It was the first device to produce X-rays. The Crookes tube, invented by William Crookes, was crucial in the development of modern imaging technologies because it was the first device to produce X-rays. X-rays revolutionized medical diagnostics and imaging, leading to significant advancements in healthcare. Choices A, C, and D are incorrect because the primary significance of the Crookes tube was its role in producing X-rays, not demonstrating electromagnetic radiation principles, paving the way for the electron microscope, or advancements in nuclear medicine.

Correct Answer: B

Rationale: The correct answer is B: Clonus. Clonus is a series of rhythmic, involuntary muscle contractions and relaxations that occur due to an abnormal response in the stretch reflex. In patients with neurological conditions like cerebral palsy, clonus is often observed due to increased muscle tone. Tremor (A) is a rhythmic shaking movement, not specifically associated with muscle contractions. Spasm (C) is a sudden, involuntary muscle contraction that is not typically rhythmic. Fasciculation (D) is a brief, spontaneous contraction of a small number of muscle fibers, not the rhythmic pattern seen in clonus.

Correct Answer: B

Rationale: The correct answer is B because decreased tactile fremitus suggests fluid or air in the pleural space, which can occur in conditions like pleural effusion or pneumothorax. This decrease in tactile fremitus is due to the transmission of vibrations from the vocal cords being impeded by the presence of fluid or air between the lung and chest wall. Choices A, C, and D are incorrect because decreased tactile fremitus is not typically associated with increased lung density, normal lung function, or lung tumors.