During a 6-Minute Walk Test (6MWT), which finding would indicate the test should be stopped immediately?
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A
Heart rate reaches 70% of age-predicted maximum
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B
Patient reports dyspnea rated 4/10 on modified Borg scale
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C
SBP rises from 120 to 160 mmHg during walking
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D
Patient develops chest pain rated 3/10 with diaphoresis