Certified Hyperbaric Technologist Test CHT Hyperbaric Medicine and Indications 3

Question 1

Which condition is an ABSOLUTE contraindication to hyperbaric oxygen therapy?

Accepted Answer

Untreated tension pneumothorax

Answer

Controlled diabetes mellitus

Answer

Chronic stable hypertension

Answer

A healed surgical scar

Question 2

A relative contraindication to HBO due to risk of pulmonary oxygen toxicity and air trapping is:

Accepted Answer

Severe chronic obstructive pulmonary disease with bleb formation

Answer

Mild seasonal allergies

Answer

A history of appendectomy

Answer

Well-controlled hypothyroidism

Question 3

Which medication is classically contraindicated during HBO because it can cause severe pulmonary toxicity with high oxygen exposure?

Accepted Answer

Bleomycin

Answer

Acetaminophen

Answer

Amoxicillin

Answer

Metformin

Question 4

Central nervous system oxygen toxicity during HBO most characteristically presents with:

Accepted Answer

A grand mal seizure

Answer

Gradual hair loss

Answer

Slowly rising blood pressure over days

Answer

Chronic joint pain

Question 5

The most common adverse effect experienced by patients during hyperbaric compression is:

Accepted Answer

Middle ear barotrauma

Answer

Permanent vision loss

Answer

Cardiac arrest

Answer

Acute kidney failure

Question 6

Reversible myopia (temporary worsening of nearsightedness) after multiple HBO sessions is attributed to:

Accepted Answer

Oxygen-induced changes in the lens of the eye

Answer

Permanent retinal detachment

Answer

Optic nerve transection

Answer

Increased intracranial pressure

Question 7

A patient with a fever before HBO treatment poses an increased risk of which complication?

Accepted Answer

CNS oxygen toxicity seizure

Answer

Middle ear infection only

Answer

Permanent deafness

Answer

Reduced wound healing