nadir
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na·dir
(nā'dēr),The lowest value of blood counts after chemotherapy.
[M.E., Med. L., lowest point, fr. Arabic nazīr, opposite (the zenith)]
Farlex Partner Medical Dictionary © Farlex 2012
na·dir
(nā'dēr)The lowest value of blood counts after chemotherapy.
[M.E., Med. L., lowest point, fr. Arabic nazīr, opposite (the zenith)]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
nadir
(nā′dĕr) [ME. fm. Arabic]1. A low point in any measurement.
2. The lowest concentration of blood cells (esp. white blood cells) found after taking a drug that suppresses the bone marrow. The term is usually used for the low blood cell counts that occur after cancer chemotherapy. When the absolute neutrophil count reaches a nadir below 1000 cells/mm3, the risk of life-threatening infections increases dramatically.
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