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Test ID: P5NT    
Pyrimidine 5' Nucleotidase, Blood

Useful For Suggests clinical disorders or settings where the test may be helpful

Workup of individuals with persistent reticulocytosis

Clinical Information Discusses physiology, pathophysiology, and general clinical aspects, as they relate to a laboratory test

Pyrimidine 5' nucleotidase (P5'NT) is involved in the catabolism of RNA which is a normal constituent of reticulocytes but not of mature erythrocytes. A deficiency of P5'NT is evidenced by persistent reticulocytosis.

Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.

Normal

Interpretation Provides information to assist in interpretation of the test results

Screening test negative for pyrimidine 5'nucleotidase deficiency

Cautions Discusses conditions that may cause diagnostic confusion, including improper specimen collection and handling, inappropriate test selection, and interfering substances

No significant cautionary statements

Clinical Reference Provides recommendations for further in-depth reading of a clinical nature

Fairbanks VF, Klee GG: Biochemical aspects of hematology. In Tietz Textbook of Clinical Chemistry. Third edition. Edited by CA Burtis, ER Ashwood, Philadelphia, WB Saunders Co., 1999, pp 1642-1647