Definition: Measures essential components of the blood. Substance What It Is Reference Ranges * What a Low Number May Mean What a High Number May Mean. USA UK/EU Australia/Canada. White blood cell count (WBC) Measures the total number of white blood cells, which defend the body. against infection; there are several different types of white blood cells:
Shen Z-X, Chen G-Q, Ni J-H, et al. Use of arsenic trioxide (AS 2 O 3) in the treatment of acute promyelocytic leukemia (APL). ii. Clinical efficacy and pharmacokinetics in relapsed patients.
The low number of red blood cells (anemia) can cause people with acute promyelocytic leukemia to have pale skin (pallor) or excessive tiredness (fatigue). In addition, affected individuals may heal slowly from injuries or have frequent infections due to the loss of normal white blood cells that fight infection.