Dive Supervisor Practice Exam – Study Guide and Practice Test

DCS Type 2, or Decompression Sickness Type 2, primarily affects the neurological system, circulatory system, and other organ systems following a dive. The symptoms associated with DCS Type 2 typically encompass joint pain, tinnitus, and various neurological issues. Joint pain is quite common due to the formation of nitrogen bubbles in the body, which can cause discomfort in the joints. Tinnitus, characterized by ringing in the ears, can occur when nitrogen bubbles affect the auditory system. Neurological issues can manifest in various ways, depending on which part of the nervous system is impacted.

Swelling of lymph nodes is not a hallmark symptom of DCS Type 2. While lymphatic issues might arise for a number of reasons related to diving, they are generally not characterized as direct consequences of decompression sickness. Therefore, the presence of swelling of lymph nodes distinguishes it from the other symptoms that are classically associated with DCS Type 2.