Hemoglobin (Hb) and Hematocrit (Hct) results in < 15 seconds. Easy, Fast and Accurate way for testing of hemoglobin. Now Testing of N Hemoglobin is easy. Fast Results (<15 Seconds) of Hb & HCT. Accuracy Hb 4.5-10 g/dL, ± 0.4 g/dL; Hb 10-25.6g/dL, ± 4%.