Real and Artifact Urine Cast

  (A) – Cast Artifact (B) – Real Hyaline Cast  

False urine dipstick results duo to strong oxidizing agent

  This patient had a Urinalysis, the dipstick results were as follow: Glucose – 100 mg/dL Bilirubin – neg Ketone – neg Specific Gravity – 1.010 Blood – ...

Serum Albumin

Albumin is the predominant plasma protein. It has no known enzymatic or hormonal activity, and accounts for approximately 50% of the protein found in human plasma. Its normal concentrations ...

Urine Crystals Forms

     

Hippuric Acid Crystals

  Hippuric Acid crystals are rarely seen – yellow-brown or colorless elongated prisms or plates and maybe so thin to resemble needles and they often cluster together it’s ...

difference between Plasma and Serum

Plasma is the supernatant obtained after centrifugation of blood collected into a test tube containing anticoagulant to prevent clotting Several anticoagulants are used in laboratory ...

Ammonium biurate Crystals

  Appearance: Ammonium biurate crystals are yellowish-brown and can be seen in a “thorn apple” shape (round with thorny projections) or in spherical form. Chemical ...

Causes of False-Positive and False-Negative Urinalysis Results

 

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 ...

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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