What is a contraindication for using CPAP in a patient?

In the context of Continuous Positive Airway Pressure (CPAP) therapy, contraindications refer to specific conditions or factors that would make its use inadvisable due to the potential for harm or ineffective treatment. Hypotension, or low blood pressure, is a contraindication for CPAP because the therapy can further decrease blood pressure by increasing intrathoracic pressure. This reduction can affect venous return to the heart, leading to decreased cardiac output and potentially worsening the patient’s hemodynamic status.

The other choices do not represent contraindications. Severe respiratory distress is often a primary reason to initiate CPAP, as it helps improve oxygenation and alleviate work of breathing. Age greater than 18 is not a contraindication; CPAP can be used effectively in adults. Normotensive status does not inhibit the use of CPAP; in fact, stable blood pressure is generally a supportive condition for administering CPAP effectively. Understanding these nuances helps in making informed decisions in emergency care situations.