Correct Answer: A

Rationale: Auscultation of breath sounds is the highest priority assessment in a client with a history of asthma experiencing difficulty breathing. It helps the nurse evaluate the severity of the asthma exacerbation by listening for wheezing, crackles, or decreased breath sounds. This assessment guides treatment decisions, such as administering bronchodilators or oxygen therapy. Measurement of peak expiratory flow, although important in assessing asthma severity, may not be feasible in an emergency situation where immediate intervention is needed. Observation of accessory muscle use and assessment of skin color are also important assessments in asthma exacerbation, but auscultation of breath sounds takes precedence in determining the need for urgent interventions.

Correct Answer: D

Rationale: The correct answer is D, tingling of the lips (perioral tingling). This is a common symptom of hypocalcemia due to increased neuromuscular excitability. Choice A, decreased deep-tendon reflexes, is more indicative of hypercalcemia. Choice B, skeletal muscle weakness, is associated with hypokalemia. Choice C, hypoactive bowel sounds, is not a typical finding in hypocalcemia.

Correct Answer: B

Rationale: The correct answer is B. When discussing infant feeding skills, it is important to note that eating foods higher in fat is not considered a specific feeding skill for newborns. The typical progression of feeding skills includes pushing solid objects from the mouth, eating pieces of soft, cooked food, drinking from a cup held by another person, and experimenting with a spoon. Choices A, C, and D correspond to the expected developmental sequence of feeding skills for infants, making them incorrect answers in this context.

Correct Answer: A

Rationale: The correct answer is A because gastric lavage is a priority for infants with botulism to remove toxins from the stomach. Botulism is a serious condition caused by a toxin produced by Clostridium botulinum bacteria. Gastric lavage helps in removing the toxin from the stomach. Choice B is incorrect because gastric lavage is not typically indicated for ibuprofen ingestion. Choice C is incorrect because gastric lavage is not the first-line treatment for ingesting powdered plant food. Choice D is incorrect because gastric lavage is not routinely performed for vitamin ingestion.

Correct Answer: C

Rationale: Black, tarry stools can indicate gastrointestinal bleeding, which is a serious complication of peptic ulcer disease. This finding suggests active bleeding in the gastrointestinal tract, requiring immediate attention. A normal heart rate of 72 beats per minute (choice A) is within the expected range. A hemoglobin level of 12 g/dL (choice B) is also within normal limits. Nausea and vomiting (choice D) are common symptoms associated with peptic ulcer disease but may not necessarily indicate active bleeding like black, tarry stools.