Correct Answer: A

Rationale: Monitoring the pulse before taking digoxin is important to prevent bradycardia.

Correct Answer: D

Rationale: Aspirating for blood return before injecting is a crucial step in administering intramuscular injections. This action ensures that the needle is not in a blood vessel, reducing the risk of injecting medication into a blood vessel, which can lead to potential complications.

Correct Answer: A

Rationale: Shaking the inhaler before use is crucial to ensure proper mixing of the medication inside the inhaler. This action helps to disperse the medication evenly, allowing for consistent dosing during inhalation. Breathing out forcefully, taking the medication with food, and using a spacer are not related to the correct use of a metered-dose inhaler and may not lead to optimal medication delivery.

Correct Answer: C

Rationale: Repositioning the client every 2 hours is a crucial intervention in the management of pressure ulcers. This action helps redistribute pressure, reducing the risk of further skin breakdown and promoting wound healing. Massaging the ulcer can cause further damage to the skin and underlying tissues. Applying a heating pad can increase the risk of skin breakdown and should be avoided. Alcohol-based cleansers are too harsh for pressure ulcers and can irritate the skin, potentially delaying healing.

Correct Answer: C

Rationale: Dry mucous membranes are a classic clinical manifestation of fluid volume deficit. Dehydration leads to reduced fluid intake or excessive fluid loss, resulting in decreased moisture in the mucous membranes. Bradycardia, increased skin turgor, and hypertension are not typically associated with fluid volume deficit. Bradycardia is more commonly seen in conditions like hypothyroidism or increased intracranial pressure. Increased skin turgor is a sign of dehydration, and hypertension is not a typical finding in fluid volume deficit.