Answer:
- We recommend that you withhold a second dose of dimenhydrinate (Gravol) if the patient has already taken this medication in the preceding 4-6 hours. This is the safest practice, and especially true in the geriatric population who can be very sensitive to the side effects of even “normal” doses of anticholinergics, causing delirium. Please take a look at 2 similar ASK MAC questions from 28-MAR-2019 and 22-NOV-13 that can provide further information about the question at hand.
- Given the patient meets the Indications, Conditions and has no Contraindications to the directive, CPAP can be utilized. In this situation, you do not suspect a pneumothorax. As such, the benefit of the treatment outweighs the risk.
In the rare event that CPAP were to cause a pneumothorax, the main concern would be a tension pneumothorax. If this situation were to occur, the patient may describe chest pain, become tachycardic and hypotensive. If you suspect an iatrogenic pneumothorax (one caused by the treatment), discontinue CPAP and document the rationale for your decision.