Correct Answer: D

Rationale: After birth, newborns can lose weight due to meconium stool, loss of extracellular fluid, and the initiation of breastfeeding. This weight loss is a normal and expected physiological process, and infants can lose up to 10% of their birth weight during this period. There is no indication of dehydration (polyuria), hypoglycemia (lack of glucose), or allergy to the formula as reasons for weight loss in newborns. Therefore, answers A, B, and C are incorrect. Answer D provides the most accurate explanation for the observed weight loss in the newborn.

Correct Answer: A

Rationale: The correct answer is 'denial and fantasy.' Denial involves blocking external events from awareness to avoid anxiety, while fantasy is escaping to a more comfortable, less threatening place. These mechanisms can protect individuals from anxiety by providing temporary relief or distraction. Choices B, C, and D are incorrect. Rationalization and suppression do not directly protect individuals from anxiety. Regression and displacement involve reverting to earlier developmental stages or redirecting emotions to a substitute target, which do not directly shield individuals from anxiety. Reaction formation and projection entail behaving in the opposite way to one's impulses or attributing one's feelings to others respectively, which do not directly protect individuals from anxiety.

Correct Answer: A

Rationale: The most suitable roommate for the client with myasthenia gravis is the client with hypothyroidism because they are quiet. A client with Crohn's disease (choice B) would be up to the bathroom frequently due to gastrointestinal issues, which could disturb the roommate with myasthenia gravis. A client with pyelonephritis (choice C) suffering from a kidney infection will need to urinate frequently, causing disturbances. A client with bronchitis (choice D) will be coughing, potentially disrupting the rest and quiet environment needed by a roommate with myasthenia gravis to manage their symptoms effectively.

Correct Answer: A

Rationale: Bilirubin is excreted through the kidneys, therefore increasing fluid intake can help facilitate its elimination. Maintaining the infant's body temperature is important for overall health but does not directly assist in eliminating bilirubin, making choice B incorrect. Choices C and D are irrelevant to bilirubin elimination in this scenario and do not address the specific issue of physiologic jaundice.

Correct Answer: D

Rationale: The most suitable roommate for the client newly admitted with gastric resection is the client with phlebitis. Phlebitis is an inflammation of the blood vessel and is not infectious, making it a safer option for the surgical client. Crohn's disease clients (choice A) have frequent stools that might spread infections to the surgical client, posing a risk. A client with pneumonia (choice B) is coughing, which can disturb the gastric client's recovery. Additionally, a client with gastritis (choice C) who is vomiting and experiencing diarrhea would also not be an ideal roommate for a client recovering from gastric resection.