#1
What is the purpose of using color-coded tubes in phlebotomy?
To identify the type of additive in the tube and guide proper specimen collection
ExplanationColor-coded tubes aid in identifying additives, ensuring accurate specimen collection.
#2
Which color tube is commonly used for collecting blood samples for complete blood count (CBC) tests?
Lavender
ExplanationLavender tubes are used for CBC tests to obtain blood with EDTA for cell preservation.
#3
Which color tube is typically used for collecting blood samples for chemistry tests?
Green
ExplanationGreen tubes are utilized for chemistry tests, indicating the presence of lithium heparin or other anticoagulants.
#4
Which color tube is commonly used for collecting blood samples for blood culture tests?
Yellow
ExplanationYellow tubes are utilized for blood culture tests to detect microbial growth.
#5
What additive is present in a lavender-top tube?
EDTA (Ethylenediaminetetraacetic acid)
ExplanationLavender-top tubes contain EDTA, preventing blood clotting and preserving cell integrity.
#6
Which of the following tests typically requires a light blue-top tube for specimen collection?
Prothrombin time (PT)
ExplanationLight blue-top tubes with sodium citrate are used for PT tests to assess blood clotting time.
#7
What does a yellow-top tube signify in phlebotomy?
It is used for serum separation
ExplanationYellow-top tubes, with a gel separator, facilitate serum separation from blood after centrifugation.
#8
Which of the following tests usually requires a green-top tube for specimen collection?
Electrolytes
ExplanationGreen-top tubes, containing heparin or other anticoagulants, are used for collecting blood samples for electrolyte testing.
#9
What is the purpose of a gray-top tube in phlebotomy?
To collect blood for glucose testing
ExplanationGray-top tubes, with potassium oxalate, are employed for glucose testing in collected blood samples.
#10
What is the purpose of a pink-top tube in phlebotomy?
To collect blood for blood typing
ExplanationPink-top tubes are employed in collecting blood for blood typing purposes in phlebotomy.
#11
In phlebotomy, which color tube is typically used for blood glucose testing?
Red
ExplanationRed tubes are commonly used for blood glucose testing in phlebotomy, indicating the absence of additives.
#12
What is the purpose of using a black-top tube in phlebotomy?
To collect blood for lead testing
ExplanationBlack-top tubes are employed for lead testing, ensuring accurate blood sample collection for this purpose.