Correct Answer: C

Rationale: The correct answer is C: Airborne precautions. Tuberculosis (TB) is transmitted via airborne particles, thus requiring airborne precautions to prevent the spread of infection. This includes using an N95 respirator to filter out small infectious particles. Droplet precautions (Choice A) are used for diseases that spread through large respiratory droplets. Contact precautions (Choice B) are for direct or indirect contact with the patient or their environment. Standard precautions (Choice D) are used for all patients to prevent the spread of infection through blood, bodily fluids, non-intact skin, and mucous membranes.

Correct Answer: B

Rationale: During a sickle cell crisis, a child with sickle cell disease is most likely to describe joint pain. Sickle cell disease leads to the blockage of blood flow by sickled red blood cells, causing ischemia and pain, often felt in the joints and other body parts. Fatigue (choice C) is a nonspecific symptom that can occur in various conditions but is not a characteristic symptom of a sickle cell crisis. While decreased hemoglobin (choice A) can be observed in sickle cell disease, it is not a symptom typically described by a child during a sickle cell crisis. Infection (choice D) can trigger a sickle cell crisis but is not the symptom most likely to be described by the child during the crisis.

Correct Answer: D

Rationale: When hands are visibly soiled, they should be washed with soap and water for at least 20 seconds. However, when using hand rub, it should be applied for at least 30 seconds to be effective. In this scenario, the UAP's hands were visibly soiled, indicating the need for thorough cleaning. Advising the UAP to use the hand rub for 30 seconds is essential to ensure proper hand hygiene and reduce the risk of spreading infection. Choices A, B, and C are incorrect because confirming completion of hand hygiene, instructing to wash for one minute, or asking why the hands were soiled do not address the immediate need for proper hand hygiene in the given situation.

Correct Answer: C

Rationale: Septal involvement is a characteristic feature of hypertrophic cardiomyopathy, where the septal wall of the heart thickens. This thickening can obstruct blood flow out of the heart, leading to complications such as arrhythmias and heart failure. This differentiates it from other types of cardiomyopathy. In congestive cardiomyopathy (choice A), the heart's chambers become enlarged and weakened, but there is no specific mention of septal involvement. Dilated cardiomyopathy (choice B) involves dilation and impaired contraction of the heart chambers, not specifically septal thickening. Restrictive cardiomyopathy (choice D) is characterized by stiffening of the heart muscle, affecting its ability to fill properly, without direct involvement of the septum.

Correct Answer: C

Rationale: Left calf pain could indicate deep vein thrombosis (DVT), a serious side effect of oral contraceptives. Reporting this finding to the healthcare provider is critical for further evaluation and treatment. Breast tenderness and change in menstrual flow are common side effects of oral contraceptives and may not be as urgent as left calf pain. Weight gain of 5 pounds, while noteworthy, is not as concerning as a possible indication of DVT.