Correct Answer: B

Rationale: The correct answer is 'a client suspected of varicella (chickenpox).' Chickenpox is an acute, infectious airborne illness that requires airborne precautions, including wearing a respirator mask for direct contact with the patient. Choices A, C, and D do not typically require airborne precautions. Choice A describes symptoms that may indicate a gastrointestinal infection but do not require airborne precautions. Choice C mentions abdominal pain and purpura, which are not specific to an airborne illness. Choice D, a client diagnosed with AIDS, does not necessitate airborne precautions unless there are additional infectious conditions present that require such measures.

Correct Answer: C

Rationale: CPK-MB is the correct answer as it is elevated in clients who have had a myocardial infarction. CPK-BB is elevated in clients with brain damage, and CPK-MM is elevated in clients with skeletal muscle damage. CPK-MI, mentioned in the rationale, does not exist, making it an incorrect choice.

Correct Answer: C

Rationale: The scenario describes classic impetigo, characterized by maculopapular lesions with honey-colored drainage, typically caused by Staphylococcus aureus or Streptococcus pyogenes. Antibiotic therapy is usually indicated for impetigo. Chickenpox, a highly contagious disease, presents with a history of high fever followed by a vesicular rash, different from the described maculopapular lesions with honey-colored drainage. Choice A is incorrect as the presentation is not consistent with chickenpox. Choice B is incorrect because impetigo is contagious, especially through direct contact. Choice D is also incorrect as impetigo is a contagious skin infection regardless of others having open wounds or lesions.

Correct Answer: C

Rationale: The correct answer is C: bilirubin. A high bilirubin level is found in newborns with hepatic immaturity, leading to jaundice. Testing bilirubin levels is crucial in diagnosing and monitoring jaundice in newborns. Choices A, B, and D (blood urea nitrogen, magnesium, and prolactin) are not commonly performed tests for evaluating jaundice in newborns. Blood urea nitrogen is a measure of kidney function, magnesium levels are usually checked in metabolic disorders, and prolactin is a hormone related to lactation, none of which are directly relevant to assessing jaundice in newborns.

Correct Answer: D

Rationale: Accurate documentation of assessment findings regarding pressure ulcers is crucial because the nursing assessment of ulcers is a standard practice in nursing care. Documenting these findings not only ensures continuity of care but also plays a vital role in preventing further progression of the ulcer. Choices A, B, and C are incorrect because while laws, hospital policies, and physician requirements may influence documentation practices, the primary reason for accurate documentation lies in the standards of nursing practice and the quality of patient care.