Correct Answer: B

Rationale: The expected date of delivery is calculated by adding 9 months and 7 days to the last menstrual period. For April 20th, the expected date is January 27th. Therefore, the correct answer is B. Choice A, January 20th, is incorrect as it does not account for the additional 7 days. Choice C, January 29th, and Choice D, January 31st, are also incorrect as they do not consider the standard calculation method for estimating the due date.

Correct Answer: B

Rationale: Cultural competence in healthcare involves understanding and respecting cultural differences to provide effective and respectful care to patients from diverse backgrounds. Choice A is incorrect as ignoring cultural differences goes against the principles of cultural competence. Choice C is wrong because enforcing cultural norms can be culturally insensitive and may not align with the patient's beliefs. Choice D is also incorrect as cultural competence encompasses more than just medical knowledge, including communication, empathy, and awareness of cultural factors.

Correct Answer: A

Rationale: Providing clear and understandable instructions can help improve patient adherence to treatment plans. Clear instructions help patients better understand their treatment plans, leading to increased compliance. Choices B, C, and D are incorrect. Using medical jargon can confuse patients and reduce adherence. Limiting patient education deprives patients of essential information needed for adherence. Ignoring patient feedback can lead to misunderstandings and hinder the patient's commitment to the treatment plan.

Correct Answer: D

Rationale: Lactated Ringer's solution is the most suitable IV solution for a patient with hypovolemia. It is a balanced crystalloid solution containing electrolytes such as sodium, chloride, potassium, calcium, and lactate, which closely resemble the body's natural fluids. This solution helps to restore intravascular volume and electrolyte balance in hypovolemic patients. Choice A, 3% sodium chloride, is a hypertonic solution used for specific situations like severe hyponatremia or cerebral edema, not typically for hypovolemia. Choice B, 10% dextrose in water, is a hypertonic solution primarily used for providing calories and free water, not for volume expansion. Choice C, 0.45% sodium chloride, is a hypotonic solution used for conditions like hypernatremia or as maintenance fluid, not for hypovolemia.

Correct Answer: A

Rationale: The correct choice that does not apply is A. Metformin does not stimulate the pancreas to produce more insulin; instead, it works by decreasing sugar production in the liver, inhibiting carbohydrate absorption, and reducing insulin resistance. It is recommended to take metformin with meals to reduce gastrointestinal side effects. Option B is incorrect as metformin is usually taken with meals. Option D is also incorrect as metformin does not inhibit the absorption of carbohydrates.