Quiz 1 Flashcards
The antiseptic used when measuring blood alcohol level
Benzalkonium chloride
The appropriate dilution of bleach to be used as disinfectant in the laboratory is
1:10
What is the proper angle of needle insertion for phlebotomy
15-30’
Which blood specimen additive can inhibit the metabolism of glucose by the cells?
Sodium fluoride
Plastic red-top tabes used to collect blood specimens usually contain
Clot activators
What is the reason why milking the puncture site is discouraged when collecting samples via capillary method? It…
Decreases the clotting time
To what does the ‘gauge of a needle relate?
Diameter
Standard precaution involve
A. Behavior that prevents contact with virally infected patients
B. Behavior that prevents direct contact with bodily fluids or contaminated surfaces
C Behavior that prevents contact with urine and sputum
D. Behavior that prevents contact wth terminally ill patients
B. Behavior that prevents direct contact with bodily fluids or contaminated surfaces
Blood - to- anticoagulant ratio is most critical for a specimen collected in this tube
Light blue top
Rupture of rbc’S with consequent release of hemoglobin is termed as
Hemolysis
What substance is contained in a serum separator tube?
Thixotropic gel
Hepatitis virus can survive on inanimate objects for of least how many week/s?
1
The enzyme inhibited by the additive found in the gray top tube
Enolase
What is the reason why glass serum tabes do not require inversions?
The glass is pro-clotting
K2 EDTA is also known as
Versene
What component is present in plasma and absent in serum
Coagulation protein
What additive can be found in an orange-topped collection tube?
Thrombin
Lithium heparin is a suitable anticoagulant of which test?
ABG
Which of the following tubes will yield a serum sample?
A. green top
B. Lavender top
C. Red top
D. Light blue top
C. Red top
What is the method of choice to obtain blood specimen from newborns for newborn screening?
Dermal puncture
Lavender-stopper tabes are most commonly used to collect
Hematology test
What is the relationship between the gauge number and the bore size?
Inversely
What leukocyte are increased in patients who are stressed during blood extraction?
Neutrophil
What is the purpose of an antiglycolytic agent?
It preserves glucose
