Chapter 19, 23, & 25 Flashcards
Are the following rules the correct puncture procedure for collecting capillary blood:
- Puncture away from midline of the finger or heel.
- Do not puncture parallel to the groves or lines of the fingertip.
- Make a quick stab with the lancet no greater than 2 mm deep on the side of the finger (off-center).
True or False?
TRUE
Fungi that appear refractile, or reflective, fragments of fungal elements are found on what part of the body?
Skin and nails
How would you move or transport microscopes?
Holding the arm and base of the microscope
When should specimens be labeled?
Before leaving the patient
Gram positive bacteria stain what color?
Deep blue or purple
When using the ocular lenses, how would you calculate the total magnification of a specimen?
Multiply ocular magnification power times objective magnification power
When using the coarse adjustment knob, how many inches is objective lens away from the object?
1/4 inch
The addition of one drop of 2% acetic acid to urine sediment will disintegrate what urine sediment cell?
Red Blood Cells (Erythrocytes)
What method are prepared from clinical specimens or from culture media spread across a glass slide for microscopic examination?
Smear
As hyphae continue to grow and branch, they develop into a mat of growth called?
Mycelium (pl. mycelia)
Which leukocyte is associated with inflammatory disorders and certain leukemias?
Basophil
What takes place when antibodies bind with specific antigens depending on a close three-dimensional fit?
Antigen-antibody reaction
What anticoagulant does the green top use for chemistry?
Heparin
What type of urinalysis includes the examination of physical characteristics, chemical characteristics, and microscopic structures in the sediment?
Routine urinalysis
What does dark orange urine indicate the presence of?
Pyridium
When performing a finger or heel puncture, the first drop should be wiped away to avoid what?
Dilution of the specimen with tissue fluids.
What test is an accurate, 2-minute disposable test designed to detect the presence of infectious mononucleosis antibodies in serum, plasma, or whole blood?
Monospot test
What Standard Form is the “Laboratory Report Display”?
SF 545
What is defined as the density of a solution compared to an equal volume of distilled water?
Specific gravity
What is the term used for the volume of erythrocytes expressed as a percentage of the volume of whole blood in a sample?
Hematocrit
Where are most capillary blood collected from an adult?
Middle or ring finger
What is the term used for organisms that do not reproduce in the presence of oxygen?
Anaerobes
Reactive specimens for Rapid Plasma Reagin (RPR) tests look like? Non-reactive?
Reactive = black clumps against white backgroundNon-reactive = even, light gray color
In manual method for determining hemoglobin, blood is mixed with ______________. This process hemolyzes, or destroys red cells (erythrocytes), disrupting the integrity of erythrocytes membranes and causing the release of hemoglobin, which is converted to a brownish-colored solution.
Cyanomethoglobin