What should be done if cleft marks are observed on capnography?

When cleft marks appear on capnography, it indicates an issue with the patient's ventilation that may be linked to the endotracheal tube (ETT). Cleft marks usually reflect a pattern of inconsistent or ineffective ventilation, possibly due to issues such as a malpositioned tube, obstruction, or inadequate seal.

Therefore, checking the endotracheal tube is essential to assess whether it is appropriately placed and functioning. This step helps ensure that the patient's airway is adequately secured and that there are no blockages or kinks causing problems with gas exchange.

Other options, while addressing different aspects of ventilation management, do not directly target the cause indicated by the cleft marks. Increasing the ventilator rate or adjusting inspiratory pressure might address a general need for improved ventilation, but without first verifying the integrity of the ETT, these actions may not resolve the underlying issue. Administering bronchodilators may benefit patients with bronchospasm but would not specifically address the mechanical factors that cleft marks suggest, such as problems with the endotracheal tube itself.