Type II decompression sickness includes which symptoms?

• A. Neurologic, inner ear, or pulmonary symptoms
• B. Musculoskeletal pain
• C. Dermal signs
• D. Nausea

Answer: (A)

Type II decompression sickness involves the more serious spread of bubbles affecting the nervous system, the inner ear, or the lungs. That’s why listing neurologic, inner ear, or pulmonary symptoms is the best fit: these are the organ systems whose involvement defines Type II. Neurologic signs can include weakness, numbness or tingling, balance problems, confusion, or even seizures. Inner-ear involvement presents as vertigo, dizziness, and hearing changes. Pulmonary involvement causes chest tightness, coughing, and shortness of breath. In contrast, musculoskeletal pain and skin signs are characteristic of Type I, the milder end of the spectrum. Nausea can occur but does not by itself define Type II.