Correct Answer: D

Rationale: Acetylcysteine is administered via inhalation as a mucolytic. It helps liquefy secretions, making it easier for the client to clear them. However, in some cases, the increased volume of liquefied secretions may be challenging for the client to manage, leading to the potential need for suction equipment to assist in clearing the airway. Therefore, the nurse should have suction equipment available after administering acetylcysteine to address any issues related to excessive secretions.

Correct Answer: C

Rationale: Levothyroxine should be taken on an empty stomach to enhance absorption. Taking it with food or at bedtime can interfere with its absorption, reducing its effectiveness. Therefore, it is essential for the client to take levothyroxine on an empty stomach to ensure optimal therapeutic outcomes.

Correct Answer: D

Rationale: Methylergonovine (Methergine) acts by stimulating uterine contractions and causing vasoconstriction. As vasoconstriction can potentially impact blood pressure, it is crucial to check the client's blood pressure before administering Methylergonovine to monitor for any hypertensive effects.

Correct Answer: A

Rationale: Hyperventilation is an indication of a systemic effect of mafenide acetate (Sulfamylon) due to its potential to cause acidosis by suppressing renal excretion of acid. If hyperventilation occurs, the medication should be discontinued to prevent further complications.

Correct Answer: B

Rationale: Sodium polystyrene sulfonate, such as Kayexalate, is a cation exchange resin that functions by releasing sodium ions in exchange for primarily potassium ions. This medication is commonly used to treat hyperkalemia, a condition characterized by elevated levels of potassium in the blood.