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OVER 98% PASS RATE FOR THE NCS, PCS, OCS, AND GCS EXAMS › forums › PCS Advantage Live Chat – 2/8/2026 › Lab values › Reply To: Lab values February 8, 2026 at 11:13 am #490888 Karly WehrmanParticipant I found this “rule” for when it is unsafe to exercise.. hope it helps 🙂 7–20–5–3–5–4 7 → Hgb 20 → Platelets 5 → WBC 3.5 / 5.5 → Potassium 4 → INR