TMC Self‑Assessment Examination (SAE) – Form A Practice Test

Question: 1 / 400

In what scenario is an HME contraindicated?

Severe asthma exacerbation

Pneumothorax

In the context of using a heat and moisture exchanger (HME), its application is contraindicated in the scenario of pneumothorax. This is due to the nature of pneumothorax, where air enters the pleural space, potentially leading to lung collapse. The use of an HME in this situation may impair the ability to remove air from the pleural space, worsening respiratory function and creating a risk for further complications like tension pneumothorax.

The other scenarios presented, such as severe asthma exacerbation, congestive heart failure, and acute respiratory distress syndrome, may involve challenges where HMEs can still be utilized with caution and under appropriate medical guidance, as they may assist with humidifying the air delivered to the patient and can be managed in conjunction with other treatments. Thus, the specific physiological impacts of pneumothorax underscore the contraindication for the use of HMEs in that setting.

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Congestive heart failure

Acute respiratory distress syndrome

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