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Causes of False-Positive and False-Negative Urinalysis Results

 

Neisseria meningitidis

Neisseria meningitidis  often referred to as meningococcus, Capsulated Gram-negative diplococcus aerobic Non motile nonspore forming catalase positive oxidase positive Acid production ...

Gamma-Glutamyl Transferase (GGT)

Measurement of gamma-glutamyl transferase (GGT) assists in the diagnosis of liver problems, especially alcoholic cirrhosis and liver tumors. GGT is an enzyme found primarily in the ...

Creatinine

  Creatinine is the waste product of creatine phosphate, a compound found in the skeletal muscle tissue. It is excreted entirely by the kidneys. Increased levels of creatinine ...

Fasciola hepatica egg

Eggs of Fasciola hepatica are broadly ellipsoidal, operculated and measure 130-150 µm long by 60-90 µm wide. The eggs are unembryonated when passed in feces. The eggs of F. hepatica ...

Stool Analysis Artifacts

Aspergillus flavus under microscope

 

MegaKaryocyte Morphology

  Megakaryocytes are among the largest cells in the bone marrow. The nuclei generally have multiple lobes, and the cytoplasm is granular. Occasionally platelets can be seen “budding” ...

C-Reactive Protein (CRP, hs-CRP)

  C-reactive protein (CRP) is a glycoprotein produced by the liver, which is normally absent from the blood. The presence of acute inflammation with tissue destruction within ...

Schilling Test (Vitamin B12 Absorption Test)

The Schilling test is used to evaluate the ability of the small intestine to absorb vitamin B12. When vitamin B12 is ingested, it combines with intrinsic factor from the gastric mucosa. ...
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