Correct Answer: C

Rationale: The correct instruction for a client using a metered-dose inhaler (MDI) is to hold the inhaler 1-2 inches from the mouth. This distance allows for the proper delivery of the medication into the lungs. Choice A is incorrect because the duration of inhalation can vary depending on the medication, and 1 second may not be adequate. Choice B is incorrect as shaking the inhaler vigorously is not necessary for all MDIs and can lead to inaccurate dosing. Choice D is incorrect as the client should hold their breath for about 10 seconds after inhalation to allow the medication to deposit in the lungs.

Correct Answer: B

Rationale: A pulse deficit is a crucial finding in clients with dysrhythmias as it indicates ineffective cardiac contractions. A pulse deficit occurs when the apical heart rate is faster than the radial pulse rate, suggesting that some heartbeats are not generating a pulse. This can be a sign of serious heart conditions like atrial fibrillation or heart failure. The other options, such as an increased heart rate (choice A), elevated blood pressure (choice C), and bounding pulse (choice D), do not specifically indicate ineffective cardiac contractions and are not directly associated with dysrhythmias.

Correct Answer: C

Rationale: The correct intervention for a client with dysphagia is to have them sit upright for 1 hour after meals. This position helps facilitate swallowing and reduces the risk of aspiration, which is crucial in managing dysphagia. Encouraging the client to lie down after eating (Choice A) can increase the risk of aspiration. Offering liquids with meals (Choice B) may also increase the risk of aspiration as it can affect swallowing coordination. Providing the client with a straw for drinking (Choice D) is not recommended as straws can increase the risk of aspiration in individuals with dysphagia.

Correct Answer: B

Rationale: The correct answer is to apply a moisture-retentive dressing. This promotes a moist wound environment, which is crucial for wound healing in clients with diabetes. Encouraging a high-protein diet may support overall health but is not directly related to wound healing. Daily wound irrigation can disrupt the wound healing process by removing necessary growth factors and cells. Applying an ice pack to the wound is contraindicated as it can impair circulation and delay wound healing.

Correct Answer: B

Rationale: The correct instruction when using a metered-dose inhaler (MDI) is to shake the inhaler vigorously before use. Shaking the inhaler ensures proper mixing of the medication, which is crucial for effective delivery of the medication into the lungs. Inhaling for a specific duration, holding the inhaler at a certain distance from the mouth, or holding the breath after inhalation are not as critical as ensuring proper mixing of the medication by shaking the inhaler.