Type 1 decompression sickness is predominantly characterized by which symptoms?

Type 1 decompression sickness is predominantly characterized by which symptoms?

• A. Neurological deficits and chest pain.
• B. Pain in joints, pruritus, skin rash such as marbling, peripheral edema.
• C. Loss of consciousness.
• D. Severe internal organ failure.

Answer: (B)

Type I decompression sickness presents with signs affecting joints, skin, and soft tissues rather than the nervous system or lungs. The joint or muscle pain, itching, and skin changes like marbling (cutis marmorata) along with peripheral swelling are classic musculoskeletal and cutaneous symptoms produced by nitrogen bubbles in those tissues. This contrasts with Type II, where neurological deficits or chest pain indicate CNS or cardiopulmonary involvement. Loss of consciousness or severe organ failure signals more serious, widespread gas effects rather than the typical Type I picture. So the combination of joint pain, pruritus, skin mottling, and edema best fits Type I.

Type I decompression sickness presents with signs affecting joints, skin, and soft tissues rather than the nervous system or lungs. The joint or muscle pain, itching, and skin changes like marbling (cutis marmorata) along with peripheral swelling are classic musculoskeletal and cutaneous symptoms produced by nitrogen bubbles in those tissues. This contrasts with Type II, where neurological deficits or chest pain indicate CNS or cardiopulmonary involvement. Loss of consciousness or severe organ failure signals more serious, widespread gas effects rather than the typical Type I picture. So the combination of joint pain, pruritus, skin mottling, and edema best fits Type I.