A patient with asthma is to begin medication therapy using a metered-dose inhaler. What is an important reminder to include during teaching sessions with the patient?

Correct Answer: B

Rationale: Position the inhaler to an open mouth, with the inhaler 1 to 2 inches away from the mouth, or attach a spacer to the mouthpiece of the inhaler, or place the mouthpiece in the mouth. To administer, press down on the inhaler to release the medication while inhaling slowly. Wait 1 to 2 minutes between puffs if a second puff of the same medication has been ordered.

Correct Answer: B

Rationale: The standard initial dose of dantrolene for malignant hyperthermia is 2.5 mg/kg IV, repeated as needed up to a maximum of 10 mg/kg. For a 70 kg patient, 2.5 mg/kg × 70 kg = 175 mg initially. However, the total dose may reach 10 mg/kg × 70 kg = 700 mg. Given the options, 600 mg is closest to a practical total dose in a crisis, though typically it’s administered in increments. (Note: Multiple '600 mg' listings appear to be an OCR error; only one is valid.)

Correct Answer: A

Rationale: Slough is dead tissue that is shed from the surface of the wound. It may be white, yellow, green, or brown in color and may have a soft, moist, or dry texture. It should be removed to promote wound healing.

Correct Answer: C

Rationale: Negative pressure wound therapy (NPWT) is a device that applies subatmospheric pressure to the wound bed, which promotes granulation tissue formation, removes excess fluid and debris, and reduces edema and bacterial colonization. The nurse should ensure that the dressing is sealed and airtight around the wound to maintain negative pressure and prevent air leaks.

Correct Answer: D

Rationale: Hydrocolloid dressings are occlusive or semi-occlusive dressings that adhere to the skin and form a gel-like substance over the wound. This creates a moist environment that stimulates autolytic debridement, which is the natural breakdown of necrotic tissue by enzymes in the wound fluid.