Correct Answer: D

Rationale: To convert 15.8 kg to pounds, you multiply by the conversion factor of 2.20462. So, 15.8 kg * 2.20462 = 34.8 pounds. Therefore, the child weighs 34.8 pounds. Choice A is incorrect as it is higher than the correct answer. Choice B is incorrect as it is lower than the correct answer. Choice C is incorrect as it rounds down the conversion result, leading to an inaccurate weight measurement.

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: A case manager is the most appropriate interdisciplinary team member to consult for a client with anorexia nervosa. They can help coordinate care, resources, and communication between various healthcare professionals involved in the client's treatment. Consulting an occupational therapist (Choice A) may not directly address the primary concerns associated with anorexia nervosa. While nutritional therapists (Choice C) play a role in addressing nutritional needs, a case manager is better suited for overall care coordination. Mental health counselors (Choice D) focus more on emotional and psychological aspects, whereas a case manager coordinates practical aspects of care.

Correct Answer: B

Rationale: Engaging in conversations about healthcare issues with a wide audience, including legislators, is a powerful way for a nurse to exert leadership and support the nursing profession. This action helps raise awareness, advocate for nursing-related matters, and contribute to positive changes in healthcare policies. Choice A, joining a local professional organization, is beneficial but may not have the same broad impact as engaging in public discourse. Choice C, registering to vote, is important for civic engagement but does not directly relate to exerting leadership in supporting the nursing profession. Choice D, learning about the healthcare system, is valuable for personal development but does not directly address exerting leadership in supporting the nursing profession.

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.