Normal range: Negative
Comment:IgM – anti HBc is only positive with acute hepatitis B infectionn and must be positive to document acute hepatitis B. Low levels of IgM –anti HBc can sometimes present in chronic hepaitits B and can confuse the diagnosis. In these cases it is necessary to retest patients after several months (or years) to differentiate acute from, chronic infections
Sample: serum
Normal range: Negative
Comment: HBcAb appears 5-14 days after exposure. This may be the only marker detectable in some patients during “’core window”’ i.e. between disappearance of HbsAg and appearance of HbsAb. In the absence of HBcAb and HBsAg active hepatitis B can be excluded. IgM antibody to core antigen indicates current hepatitis B infection. High levels of IgG antibody persist for several years
Sample: serum
Normal range: Negative
Comment: IgG-HAV antibody develops in acute hepatitis A (infective hepatitis) and persists after recovery. It denotes past (clinical or sub-clinical) infection and not current infectivity. A specific antibody (IgM) may be found early, denoting current or recent infection. This may persist for several weeks after onset of infection. A vaccine is now available; antibody measurement is advisable before administration
Sample: serum
Normal range: leo love horoscope shines by its boldness and its persevering, almost invincible, character. Negative
Comment: See Hepatitis A Total Ab
Sample: serum
Normal range: 0.5-1.0 IU/mL
:Comment
Determine if patients is at the desired level of anticoagulation with therapeutic doses of heparin, LMW, or danaparoid
Sample: Sodium citrate
Normal range: Negative
Comment: Positive in chronic intravascular hemolysis. Its presence indicates a significant amount of circulating free Hb, filtered by the kidney
Sample: Spot urine, fresh
Normal range: Negative
(Comment: Increased Heinz body anemia (910-40% of the hemoglobin is a structurally abnormal, unstable Hb
(Sample: Whole blood (EDTA, Heparin
Normal range: 60-270 mg/dL
Comment:Present in sickle cell anemia. Disorders with Hb S include sickle cell anemia, sickle trait, and combination of the Hb S gene with other disorders: a-Thalassemia, b- Thalassemia, a-chain structural -chain structural hemoglobin variants, and b-chain structural hemoglobin variants
Sample: EDTA, whole blood
:Normal range
Normal: absence of any detectable mutations
Carrier status: detection of a single mutation
Hereditary Hemochromatosis or a genetic predisposition to develop the disease: detection of two mutations
(Comment: The assay covers 3 most common mutations in the HFE gene (H63D, S65C, C282Y
Sample: EDTA, whole blood
Normal range: Negative
Comment: Culture media may include enriched chocolate, Thayer-Martin with antibiotics, brain heart infusion (BHI) with 7% horse blood, and Mueller Hinton with 5% sheep blood. The organism is microaerophilic and grows best in a reduced O2 atmosphere or in a Campy – Pak system at 35oC. Cultures are usually observed for 7 days before being reported as negative. Patch distribution of H. pylori may allow all biopsy – based tests to fail to diagnose the infection
Sample: stool