The nurse is teaching parents of a newborn about feeding their infant. Which instruction should the nurse include?

Correct Answer: A

Rationale: Rationale for Correct Answer A: 1. Using the defrost setting on microwave ovens to warm bottles is safe because it ensures even heating without creating hot spots that could burn the baby's mouth. 2. This method helps to preserve the nutrients in the breast milk or formula. 3. It is important to warm the bottle to body temperature to mimic the natural feel of breast milk for the baby's comfort. Summary of Incorrect Choices: B: Feeding the baby partially used bottles after 24 hours can increase the risk of bacterial contamination and foodborne illness. C: Mixing two parts water and one part concentrate for formula concentrate is incorrect as it may dilute the formula, leading to inadequate nutrition for the baby. D: Adding new formula to partially used bottles can alter the balance of nutrients and increase the risk of contamination, affecting the baby's health.

Correct Answer: C

Rationale: The correct answer is C: explaining progression of the disease to the client and family. This measure helps the client and family understand the disease, leading to better coping and acceptance, thus promoting a positive body image. Administering immune globulin (A) is not directly related to body image. Assessing extremities (B) and heart sounds (D) are important for monitoring the disease but do not directly impact body image.

Correct Answer: B

Rationale: The correct answer is B: Do not use underarm deodorant. This instruction is important because deodorant can interfere with the imaging results by causing artifacts on the mammogram images. Using deodorant can lead to false positives or false negatives, affecting the accuracy of the test results. Choice A is incorrect because using underarm deodorant can negatively impact the mammogram results. Choice C is incorrect as there is no need for the client to fast before a mammogram. Choice D is also incorrect as having a friend drive you home is not a necessary instruction for a mammography appointment.

Correct Answer: B

Rationale: The correct answer is B: gout. Uric acid levels are typically checked for gout, a type of arthritis caused by the buildup of uric acid crystals in the joints. This condition directly relates to uric acid levels in the blood. Asthma (choice A), diverticulitis (choice C), and meningitis (choice D) do not typically require checking uric acid levels. Asthma is a respiratory condition, diverticulitis is a gastrointestinal condition, and meningitis is an inflammation of the protective membranes covering the brain and spinal cord.

Correct Answer: B

Rationale: The correct answer is B: ondansetron (Zofran). Ondansetron is a selective serotonin receptor antagonist that effectively targets the serotonin receptors in the chemoreceptor trigger zone to relieve nausea and vomiting. It is commonly used in chemotherapy-induced nausea and vomiting. A: Metoclopramide is a dopamine receptor antagonist and primarily used for gastrointestinal motility disorders, not specifically for nausea relief. C: Hydroxyzine is an antihistamine with sedative properties, primarily used for anxiety and itching, not specifically for nausea relief. D: Prochlorperazine is a dopamine receptor antagonist primarily used for treating psychotic disorders, not specifically for nausea relief. In summary, ondansetron is the correct choice as it targets serotonin receptors specifically for relieving nausea and vomiting, whereas the other options focus on different mechanisms of action.