"I have been coughing up blood.”.

Choice A rationale:

Mild nasal congestion may be a common finding in many patients and does not necessarily contraindicate suctioning unless it significantly obstructs the airway.

Choice B rationale:

A sore throat may indicate local irritation, but it does not directly contraindicate suctioning unless there are other underlying complications.

Choice C rationale:

A history of coughing up blood (hemoptysis) suggests an ongoing bleeding disorder. Suctioning could exacerbate the bleeding, leading to further complications. The procedure should be avoided until the cause of hemoptysis is properly assessed and managed.

Choice D rationale:

Feeling lightheaded may be a common sensation during and after suctioning due to the stimulation of the gag reflex, but it does not necessarily contraindicate the procedure. It is essential to ensure adequate oxygenation and provide proper support during the procedure to minimize this discomfort.