Which of the following are signs of Type 2 decompression sickness?

• A. Chokes/Cardiopulmonary symptoms
• B. Staggers (inner ear)
• C. Neurological disorders
• D. All of the above

Answer: (D)

Type 2 decompression sickness involves symptoms that affect multiple body systems, indicating more serious gas bubble formation in tissues and circulation. When bubbles reach the central nervous system, lungs, or inner ear, you can see a range of signs beyond the mild musculoskeletal symptoms of Type 1.

Chokes or cardiopulmonary symptoms reflect bubbles in the lungs and airways, causing coughing, chest tightness, and trouble breathing. Staggers describe inner ear involvement, leading to dizziness, vertigo, and balance problems. Neurological disorders cover a spectrum from numbness and weakness to confusion or coordination difficulties, stemming from bubbles impacting the brain or spinal cord. Because Type 2 DCS can involve these different systems, all of these signs can appear, which is why the all-of-the-above option is the best answer.