According to CLSI GP41 standard order of draw, which color-stoppered tube should be drawn first when blood cultures are also being collected?
Phlebotomy Specimen Collection
Question · Easy
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Short
A CMLA needs to draw a coagulation panel (PT/INR) and a CBC. Per CLSI order of draw, which sequence is correct?
Question · Medium
Introduction
1.1 Current Exam Facts
Study guide
What additive is in a lavender (purple)-top tube and what is its mechanism of action?
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A light blue (sodium citrate) tube must be filled to ensure a proper blood-to-anticoagulant ratio of:
The vein most commonly recommended for routine adult venipuncture in the antecubital area because of its central position and lower risk of nerve/artery injury is the:
PPE fit check
Per CLSI GP41, the maximum amount of time a tourniquet may remain in place before risk of hemoconcentration becomes significant is:
Pre Analytic Quality
1.2 Blueprint Weights and Study Strategy
When collecting a lactic acid (lactate) specimen, the CMLA should:
What is the recommended skin antiseptic for collecting a blood culture in adults per CLSI GP41/M47?
The standard adult blood culture order calls for two sets drawn from two different sites. Each "set" typically consists of:
Spin the wheel: name the extinguisher
For an infant heel stick, the CMLA should warm the heel, use only the medial or lateral plantar surface, and limit punctures to a maximum of:
Chapter 2: Safety Terminology and Infection Control
2.1 Safety, Infection, and OSHA Terminology
Which is the correct first drop of blood handling for a capillary collection?
Per CLSI GP33, which two patient identifiers are minimum required at the bedside before drawing a specimen?
Per CLSI guidance, when should specimen tubes be labeled?
Order of draw
A patient appears to have only fragile, hand-vein options for a routine CBC. The most appropriate device choice for this CMLA is:
2.2 Chain of Infection and Precautions
When a butterfly is used and a coagulation (light blue) tube is the FIRST tube drawn, the CMLA should:
Question · Hard
After drawing a lavender (EDTA) tube, the correct mixing technique is:
A trough drug level for vancomycin should be drawn:
Who can interpret for a patient?
A fasting lipid panel requires the patient to fast for:
2.3 Isolation, Aseptic Technique, and Disease Prevention
A green-top tube contains heparin. Which form of heparin should generally be AVOIDED if a potassium level is ordered?
Which of the following is the BEST description of how a serum separator tube (SST/gold-top) functions?
Specimen Processing Accessioning
Which patient population poses the HIGHEST risk for vagal/syncopal reaction during venipuncture?
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If a patient has had a mastectomy on the right side (with lymph node removal), the CMLA should:
Chapter 3: OSHA, HazCom, and Public-Health Reporting
3.1 OSHA Bloodborne Pathogens and Needlestick Safety
If the patient has an IV running in one arm, the venipuncture should preferably:
After completing a venipuncture, what should the CMLA do FIRST?
Lab Safety Infection Control
A CMLA accidentally engages a contaminated needle into their thumb. The FIRST action per OSHA exposure control protocols is to:
Pharmacy tech check-off
A serum specimen typically requires how long for clot formation in a plain red-top tube before centrifugation?
3.2 Hazard Communication, SDS, and GHS
Standard centrifuge settings for separating serum from a clotted specimen are approximately:
Why should an SST that has already been centrifuged once NOT be re-centrifuged?
A specimen tube arrives with a clearly red-tinged supernatant after centrifugation. This finding is called and most commonly caused by:
Which precautions?
A serum sample appears milky/turbid. The most likely cause is:
3.3 Mandated Safety Rules and Public-Health Reporting
Which condition causes a yellow-brown serum/plasma color?
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