Pink or Red stopper tubes can be used for Blood Bank!
Question options:
HLA-DR is a MHC class II(major histocompatibility complex) surface receptor on the cellular surface which is encoded by the human leukocyte antigen complex, or HLA.
DR antigens are found in which of the following systems:
Serum separator tubes should not be used for:
Question options:
Parathyroid hormone regulates serum calcium by acting on bone, kidney, and intestines while regulating phosphate by stimulating the intestines and the kidneys, enhancing absorption and reabsorption respectively.
Chem
The parathyroid hormone is important in the regulation of:
% concentration (expressed as a proportion or ratio) x volume needed = mass of reagent to use
So... 10% (w/v) solution of sodium hydroxide x 200 mL needed = 20 grams of sodium hydroxide
How many grams of sodium hydroxide are required to prepare a 200 ml solution of a 10% (weight per volume) solution? (Atomic weights: Na = 23; 0 = 16; H = 1)
Howell-Jolly bodies are composed of DNA and appear as small round ball-like inclusions inside the red cells. Usually only one Howell-Jolly body will be present in each red cell.
Single erythrocyte inclusions which are large, round, smooth and purplish-blue staining are most likely:
A phlebotomist draws an outpatient without wearing gloves. The outpatient displays a badge and cites the laboratory for not following the law. The outpatient is an employee of the:
Rapid vascular constriction, not dilation, immediately occurs when there is vascular injury in order to constrict the amount of blood that escapes the vessels; ultimately preventing massive loss of blood.
Primary hemostatic processes resulting from vascular damage include all of the following EXCEPT:
DAT ( Direct Antiglobulin Test ).
When AHG or Coombs serum is used to demonstrate that red cells are antibody coated in vivo, the procedure is termed:
A blood culture to evaluate septicemia is performed in:
Which of the procedures listed below will increase the platelet concentration in the preparation of Platelets?
S. aureus does not have capsular material as a defense mechanism. H. influenzae, K. pneumoniae, N. meningitidis, and S. pneumoniae each have capsular material use as a defense mechanism. This capsular material is an antiphagocytic substance which helps deter bacterial death by macrophages and other white blood cells.
Microbiology
Which one of the following does NOT have capsular material as a defense mechanism?
Hematology
What is Coombs sera comprised of:
The combination of complement C4, C2 and C3 that binds to the antigen-antibody complex in the initial reaction step in the classical pathway of complement activation is called the activation unit.
Which of the following is the "activation unit" in the classical complement pathway?
Immunoassay is the most common technique that is used by clinical laboratories for therapeutic drug monitoring.
Most of the drugs commonly assessed with TDM can be measured on analytical platforms which utilize antibodies (in some form) for detection. Antibodies can be developed that recognize drugs. Although most drugs are much too small to evoke an immune response, scientists can conjugate drugs to immunogenic proteins to produce antibodies that recognize drug-specific epitopes.
Which of the following is the most common technique that is used by clinical laboratories for therapeutic drug monitoring?
