Correct Answer: A

Rationale: Discarding the first voiding is necessary when initiating a 24-hour urine collection to ensure that the collection starts with an empty bladder. This step helps in obtaining an accurate measurement of substances excreted over the 24-hour period without any carryover from the previous voids. Keeping the urine at room temperature or in a sterile container is not specific to the initiation of the collection. Therefore, the correct action is to discard the first voiding.

Correct Answer: C

Rationale: Tuberculosis is transmitted through the air, making it an airborne disease. Airborne precautions are essential to prevent the spread of tuberculosis to others. These precautions include placing the client in a negative pressure room, wearing an N95 respirator mask, and ensuring proper ventilation to minimize the risk of transmission to healthcare workers and other clients.

Correct Answer: C

Rationale: Choosing option C, 'I will inhale the medication quickly,' demonstrates an understanding of DPI use. Inhaling the medication quickly ensures effective delivery of the dry powder to the lungs, maximizing its therapeutic effects. Options A, B, and D are incorrect as shaking the DPI, taking it with food, and using a spacer are not recommended practices for DPI administration.

Correct Answer: D

Rationale: Placing the client in Fowler's position is crucial in preventing aspiration as it helps maintain an open airway and reduces the risk of food or liquid entering the lungs during swallowing. This position promotes safer swallowing and minimizes the chances of aspiration pneumonia.

Correct Answer: C

Rationale: Consuming a consistent amount of green leafy vegetables is important for clients taking warfarin as these foods contain vitamin K, which can affect the medication's effectiveness. Maintaining a consistent intake helps stabilize the International Normalized Ratio (INR) levels, which is crucial for monitoring the blood's ability to clot properly while on warfarin therapy.