SECTIONS OF LABORATORY AND COMMONLY REQUESTED LABORATORY TESTS Flashcards
- This section is intended for the testing of blood and other body fluids to quantify essential soluble CHEMICALS including waste products useful for the diagnosis of certain diseases
- analyzes serum and plasma for chemical constituents to evaluate general health and disorders of body systems and organs
Clinical chemistry
- for the diagnosis of diabetes mellitus
Fasting Blood Sugar (FBS) and Glycosylated Hemoglobin
- High- and Low-Density Lipoprotein
- Triglycerides
Total Cholesterol
For the diagnosis of cardiovascular diseases
triglycerides
Elevated levels indicate kidney disorders or gout
blood uric acid
Elevated levels indicate kidney disorders
blood urea nitrogen
Elevated levels indicate kidney disorders
Creatinine
ALT means?
Alanine aminotransferase
- Elevated levels indicate liver disorders
Aspartate aminotransferase
- Elevated levels indicate BONE or LIVER disorders
Alkaline phosphatase
- Elevated levels indicate liver or hemolytic disorders
Bilirubin
Elevated levels indicate early liver disorders
Gamma-glutamyltransferase (GGT)
Elevated levels indicate myocardial infarction or lung or liver disorders
Lactic dehydrogenase
Elevated level indicate pancreatitis.
Amylase and lipase
Evaluate body fluid balance
Electrolyte (Na, K, Cl, CO2)
This section is subdivided into
four sections:
* Bacteriology
* Mycobacteriology
* Mycology and Virology
- Focused on the identification of bacteria and fungi on specimens received.
* Most samples are obtained from the blood, urine, throat, sputum, genitourinary tract, wounds, cerebrospinal fluid and feces
Microbiology
4 steps of primary stain
- Crystal violet
- Iodine
- Alcohol
- Safranin
- This section deals with the enumeration of cells in the blood and other body fluids (e.g., CSF, pleural fluid, etc.)
- Coagulation studies focus on blood testing for the determination of various coagulation factors
Hematology and Coagulation Studies
✓ the most common body fluid analyzed in this section and a specimen obtained by using a collection tubes with lavender stopper that contain ethylenediaminetetraacetic acid (EDTA) which inverted eight times.
✔The liquid portion of the blood is PLASMA if it is obtained from a sample that has been anticoagulated. Contains protein fibrinogen
✓If the sample is allowed to clot, the liquid portion is SERUM
Whole blood
- Is the most common type of test performed in the Hematology section
- Screening test to assess patient conditions such as INFECTIONS and MALIGNANCY.
Complete Blood Count
Determines the percentage of the different types of WBC and evaluates RBC and platelet morphology
differential
Determines the volume of RBC packed by CENTRIFUGATION
hematocrit
Determines the OXYGEN-carrying capacity of RBC
hemoglobin
Determines the hemoglobin in RBC amount of
Mean corpuscular hemoglobin
Determines the weight of hemoglobin in RBC and compares it with the size of the cell
Mean corpuscular hemoglobin
concentration
Determines the size of RBC
Mean corpuscular volume
Determines the number of platelets in circulating blood
Platelet count
Determines the number of RBC in circulating blood
Red blood cell count
Calculation to determine
differences in the size of RBC
Red blood cell distribution width
Determines the number of WBC in circulating blood
White blood cell count