Experience the Quality With Free CHT Exam Questions That Helps Candidates Pass

Middle ear and sinus assessment is essential prior to HBO therapy because pressure changes during compression can lead to barotrauma if equalization mechanisms are impaired. Patients with colds, sinusitis, or eustachian tube dysfunction are at heightened risk. Although blood glucose monitoring is important in diabetic patients and chest imaging is needed in suspected pneumothorax, ear and sinus evaluation applies universally to every patient. The CHT’s role includes teaching patients ear-clearing techniques and identifying any ENT concerns that may contraindicate or modify treatment protocols.

Diabetic patients using insulin are at risk of hypoglycemia during HBO therapy, since oxygen enhances glucose metabolism. Monitoring glucose before and after treatment is mandatory.

If electrode heating exceeds the recommended 43–45°C, readings may be falsely elevated due to artificially increased local perfusion. Correct calibration and temperature control are essential for accurate results.

The first response is to remove oxygen and provide air, reducing CNS oxygen toxicity risk. Seizures are usually self-limited. Rapid decompression is unsafe, and nitrogen is not used. Restraints may worsen injury risk.

Claustrophobia is a relative contraindication to HBO therapy. With pre-treatment counseling, patient education, and sometimes anxiolytic medication prescribed by a physician, many patients can tolerate chamber sessions. Canceling therapy is not always necessary unless anxiety remains unmanageable. Rapid pressurization is dangerous, and restraints are never acceptable. CHTs play a critical role in reassurance, communication, and patient-centered support during treatment.