Where should the uterine fundus be palpable at 12 weeks?

Correct Answer: B

Rationale: At 12 weeks of gestation, the uterine fundus should be palpable at the level of the symphysis pubis. This is because the uterus rises approximately 1 cm above the symphysis pubis each week during the first trimester. By 12 weeks, it should be palpable at this level. Choice A (At the level of the umbilicus) is incorrect because the fundus is not expected to reach the level of the umbilicus until around 20 weeks. Choice C (Midway between the symphysis and umbilicus) is incorrect as this would typically occur around 16-18 weeks. Choice D (Below the symphysis pubis) is also incorrect because by 12 weeks, the fundus should have risen above the symphysis pubis.

Correct Answer: C

Rationale: The correct answer is C: Of average weight. Patients with bulimia often maintain a normal weight or fluctuate between weight extremes due to their binge-eating and compensatory behaviors. They may engage in purging to counteract the effects of binge eating, preventing significant weight gain. Choice A is incorrect as bulimia is not typically associated with being very overweight. Choice B is incorrect as individuals with bulimia can have a normal or slightly underweight body weight. Choice D is incorrect as individuals with bulimia are often preoccupied with weight and body image.

Correct Answer: D

Rationale: The correct answer is D, Bupropion. Bupropion is known to potentially cause false-positive results for amphetamines on drug screens due to its structural similarity to amphetamines. Bupropion is a medication commonly used to treat depression and aid in smoking cessation. Metformin (A), Lisinopril (B), and Glyburide (C) are not known to cause false positives for amphetamines. Metformin is used to treat diabetes, Lisinopril is used for hypertension, and Glyburide is used for diabetes. Therefore, the most likely medication cause for a false positive result for amphetamines in this case would be bupropion.

Correct Answer: A

Rationale: Functional incontinence is the correct answer. This occurs when a person has physical or cognitive impairments that prevent them from reaching the toilet in time. In Alzheimer's disease, the patient's cognitive decline may impede their ability to recognize the need to urinate or navigate to the restroom. Overflow incontinence is due to bladder overdistention, urge incontinence is characterized by a sudden and overwhelming urge to urinate, and stress incontinence is associated with physical activities that increase intra-abdominal pressure. Hence, in this scenario, functional incontinence aligns with the patient's inability to reach the toilet promptly due to their Alzheimer's disease-related cognitive limitations.

Correct Answer: B

Rationale: The correct answer is B because varicose veins are usually diagnosed based on clinical presentation, such as visible, bulging veins and symptoms like pain or swelling. This is because varicose veins are often easily visible and cause noticeable symptoms. A: Varicose veins are not typically due to congenital valve deformities but rather develop over time due to weakened vein walls and valves. C: Varicose veins can be affected by pregnancy due to hormonal changes and increased pressure on the veins. D: Varicose veins may not necessarily be more symptomatic during ovulation; symptoms can vary based on individual factors.