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Quizzes > Health & Medicine > Human Anatomy & Medicine

Phlebotomy Quiz: Test Your Chapter 7, 8 & 9 Skills!

Think you can ace Quizlet Phlebotomy Chapter 8 & 9? Take the test!

Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art illustration showing blood collection tube and syringe next to open quiz booklet on sky blue background

Ready to master blood draws and patient care? Dive into our phlebotomy quizlet chapter 7 free quiz designed to sharpen your skills and boost confidence. Whether you're tackling chapter 7 phlebotomy practice test items or diving into quizlet phlebotomy chapter 8, you'll work with scenarios drawn from real cases. Access our phlebotomist exam questions and Phlebotomy Practice Test to guide you through a comprehensive phlebotomy quiz for chapters 7-9. Perfect for aspiring technicians, this is your chance to test yourself and level up your expertise. Identify gaps in technique and enhance patient comfort along the way. Get started today!

What is the primary purpose of using a tourniquet during venipuncture?
To dilate the veins by restricting venous return
To sterilize the puncture site
To measure the patient's blood pressure
To warm the skin for better blood flow
A tourniquet is applied to restrict venous return, causing veins to dilate and become more prominent for easier access. It should not be used for measuring blood pressure or sterilization. Proper application improves the success rate of venipuncture. https://en.wikipedia.org/wiki/Venipuncture
What is the correct order of draw when multiple tubes are collected?
Blood culture bottles, light blue, red, green
Green, red, light blue, gray
Lavender, red, green, blue
Red, green, lavender, gray
Following the proper order of draw prevents additive carryover that can interfere with test results. The standard sequence begins with blood culture bottles, then citrate tubes (light blue), serum tubes (red), followed by heparin tubes (green). Adhering to this sequence maintains specimen integrity. https://www.cdc.gov/labquality/quality/blood-collection.html
Which antiseptic is commonly used for routine blood culture site preparation?
Benzalkonium chloride
70% isopropyl alcohol
Hydrogen peroxide
Chlorhexidine gluconate
Chlorhexidine gluconate is preferred for blood cultures due to its broad antimicrobial action and residual effect. While alcohol removes oils and transient microbes, chlorhexidine is more effective at reducing skin flora. Proper antisepsis reduces contamination rates. https://www.clsi.org/standards/products/microbiology/documents/m47/
What gauge needle is most commonly used for standard adult venipuncture?
23 gauge
25 gauge
21 gauge
18 gauge
A 21-gauge needle offers a balance between adequate blood flow and patient comfort for routine draws. Larger needles like 18-gauge are used for donations or transfusions, while smaller needles can hemolyze samples. The 21-gauge is the standard for most outpatient collections. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4563878/
What is the meaning of hemolysis in a blood sample?
Clumping of platelets
Lysis of white blood cells
Formation of microclots in plasma
Destruction of red blood cells releasing hemoglobin
Hemolysis involves the rupture of red blood cells, releasing hemoglobin into the plasma or serum. It can lead to falsely elevated potassium and LDH levels. Avoiding excessive suction or small needles reduces this risk. https://en.wikipedia.org/wiki/Hemolysis_(blood)
How long should a tourniquet remain tied during venipuncture before release?
No longer than 1 minute
At least 30 seconds
Until collection is complete
Up to 2 minutes if needed
Leaving a tourniquet on longer than one minute can lead to hemoconcentration and altered lab values. It should be released as soon as blood flow is established. This practice ensures sample integrity and patient safety. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4470477/
What additive is present in a lavender-top tube?
Heparin
EDTA
Sodium citrate
No additive
Lavender-top tubes contain EDTA, an anticoagulant that chelates calcium to prevent clotting. They are commonly used for hematology tests like CBC. Proper mixing prevents cell clumping and ensures accurate counts. https://www.fda.gov/medical-devices/ivd-regulatory-assistance/blood-collection-tubes
Which vein is the first choice for routine antecubital venipuncture?
Median cubital vein
Dorsal hand vein
Basilic vein
Cephalic vein
The median cubital vein is superficial, anchored, and less painful to access, making it the first choice. The basilic vein lies near nerves and arteries, posing higher risk. The cephalic is second choice if median cubital is unavailable. https://www.ncbi.nlm.nih.gov/books/NBK279393/
Why should blood collection tubes be gently inverted after filling?
To remove air bubbles
To cool the sample
To mix the blood with additives evenly
To sterilize the tube interior
Gently inverting tubes ensures that blood interacts uniformly with anticoagulants or clot activators. Vigorous shaking can cause hemolysis and compromise results. Adhering to recommended inversion counts maintains sample quality. https://www.cdc.gov/labquality/quality/blood-collection.html
What does PPE stand for in a clinical setting?
Patient Protection Essentials
Professional Practice Elements
Personal Protective Equipment
Primary Phlebotomy Equipment
PPE refers to gear worn to protect healthcare workers from exposure to hazards. This includes gloves, gowns, masks, and face shields. Proper use of PPE minimizes infection transmission. https://www.osha.gov/personal-protective-equipment
What is the best way to verify a patient's identity before drawing blood?
Confirm with the patient's room number
Ask the patient's nurse
Compare to the chart outside the room
Ask the patient to state full name and date of birth and check their armband
Verifying two identifiers (name and date of birth) and matching them to the armband prevents misidentification. This practice is mandated by patient safety protocols. Incorrect identification can lead to serious errors. https://www.jointcommission.org/standards/standard-faqs/critical-access-hospital-and-hospital-patient-safety/qs_patient_id/000002406/
When drawing blood for coagulation studies, which tube color is used?
Green
Lavender
Red
Light blue
Light blue-top tubes contain sodium citrate to preserve clotting factors at a 9:1 blood-to-additive ratio. They are specifically used for PT, PTT, and other coagulation tests. Proper filling is critical for accurate results. https://www.clsi.org/standards/products/clinical-laboratory-standards-institute/clsi-document-g008/
What should you do if you accidentally stick yourself with a used needle?
Discard the needle immediately without reporting
Wash the area, report the incident, and follow facility protocol
Continue working and check later
Squeeze out a drop of blood and bandage
A needlestick injury requires immediate cleansing, reporting to a supervisor, and completing an incident report. Prompt action reduces infection risk from bloodborne pathogens. Facilities have specific post-exposure protocols to follow. https://www.cdc.gov/niosh/topics/bbp/emergency.html
What angle is recommended for needle insertion during venipuncture?
45 degrees
60 degrees
30 degrees
15 degrees
A low angle (around 15 degrees) helps enter the vein without passing through its posterior wall. Higher angles increase the chance of puncture complications. Proper technique promotes patient comfort and specimen integrity. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5044760/
Why is it important to draw blood culture bottles first in a multi-tube draw?
Because they fill fastest
To reduce patient discomfort
Because they do not contain additives
To minimize risk of contamination and obtain accurate culture yields
Drawing blood cultures first reduces contamination risk from skin flora and other additives. It ensures that the sample is as sterile as possible for detecting bacteremia. Improper order can lead to false-positive results. https://www.clsi.org/standards/products/microbiology/documents/m47/
What is the recommended maximum depth for an adult finger capillary puncture?
4.0 mm
1.5 mm
2.4 mm
3.0 mm
CLSI guidelines recommend a depth no greater than 2.4 mm for adult fingersticks to avoid bone injury. Staying within this limit ensures patient safety and sufficient blood flow. Over-penetration can cause severe pain and bone damage. https://clsi.org/standards/products/micro/specimen-collection/
Which tube is appropriate for collecting blood for an electrolyte panel?
Red-top (no additive)
Lavender-top (EDTA)
Gray-top (fluoride/oxalate)
Green-top (heparin)
Heparinized green-top tubes prevent clotting and are suitable for plasma-based electrolyte assays. Red-top tubes produce serum, but processing time may delay results. EDTA binds calcium, interfering with electrolyte measurements. https://www.cdc.gov/labquality/quality/blood-collection.html
What causes a lipemic blood sample appearance?
Inadequate mixing of anticoagulant
Elevated hemoglobin levels
High triglyceride concentration
Excessive tourniquet time
Lipemia results from elevated triglycerides, causing turbidity and a milky appearance. It can interfere with spectrophotometric assays. Fasting prior to lipid-sensitive tests helps prevent this issue. https://en.wikipedia.org/wiki/Lipemia
Which specimen type is most suitable for rapid glucose testing in an ambulatory patient?
Arterial blood
Capillary blood
Venous blood
Timed urine
Capillary blood provides a quick point-of-care glucose measurement. It is minimally invasive and yields rapid results. Venous samples require lab processing, delaying immediate decisions. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5471539/
After applying isopropyl alcohol to the site, how long should you wait before puncturing?
No waiting required
Until the skin is completely dry (about 30 seconds)
5 seconds
At least 60 seconds
Allowing the alcohol to air dry reduces stinging and prevents sample hemolysis. Wet alcohol can dilute blood or cause contamination. A 30-second drying time is generally sufficient. https://www.cdc.gov/infectioncontrol/guidelines/disinfection/healthcare-settings.html
Why should you avoid massaging or milking the puncture site during a capillary draw?
It increases patient comfort
It ensures full tubes
It speeds up the collection
It can introduce tissue fluid and cause sample hemolysis
Massaging the site can cause interstitial fluid to mix with blood, diluting analytes. It also increases risk of hemolysis and inaccurate results. Gentle wiping of the first drop is preferred. https://www.clsi.org/standards/products/micro/specimen-collection/
What is the role of a clot activator in red-top tubes?
To prevent clot formation
To anticoagulate the sample
To separate plasma from cells
To promote rapid blood clotting
Clot activators, such as silica particles, accelerate fibrin formation for quicker serum separation. This reduces turnaround time for chemistry tests. Without clot activator, samples may take much longer to clot. https://www.fda.gov/medical-devices/ivd-regulatory-assistance/blood-collection-tubes
What is the first step in the preanalytical phase of laboratory testing?
Verifying the physician's order and patient identifiers
Transporting the specimen
Collecting the specimen
Recording the results
Verification ensures the correct tests are ordered for the correct patient. It prevents wrong tests and mislabeling errors. Proper identification begins the chain of custody for specimens. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3880124/
For a blood alcohol test, which tube additive is required?
No additive (red-top)
Heparin (green-top)
Sodium fluoride/potassium oxalate (gray-top)
EDTA (lavender-top)
Fluoride stabilizes glucose and prevents glycolysis, while oxalate anticoagulates the sample for blood alcohol analysis. This combination preserves ethanol levels until testing. Using other tubes can result in inaccurate readings. https://www.clsi.org/standards/products/clinical-laboratory-standards-institute/clsi-document-g008/
Why should blood collection tubes be labeled in the patient's presence?
To ensure correct patient identification and reduce labeling errors
To maintain sterility
To speed up workflow
To comply with manufacturer guidelines
Labeling in front of the patient confirms identity and test details, minimizing the risk of specimen mix-ups. It is a patient safety requirement by regulatory agencies. Proper labeling ensures chain-of-custody integrity. https://www.jointcommission.org/standards/standard-faqs/critical-access-hospital-and-hospital-patient-safety/qs_patient_id/000002406/
What is a common cause of a hematoma during venipuncture?
Using too small a needle gauge
Applying too much pressure after withdrawal
Leaving the tourniquet on too briefly
Penetrating through the posterior vein wall
If the needle goes through the back wall of the vein, blood can leak into surrounding tissue, forming a hematoma. Proper angle and depth of insertion help avoid this. Immediate pressure on the site after needle removal also prevents hematoma formation. https://www.ncbi.nlm.nih.gov/books/NBK538405/
Which stain is commonly used for preparing a peripheral blood smear?
Crystal violet
Gram stain
Wright's stain
India ink
Wright's stain differentiates cellular components and allows identification of blood cell morphology. It provides clear visualization of red cells, white cells, and platelets. Other stains are used for microbial identification. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2679719/
Which needle gauge is recommended for a whole blood donation?
22 gauge
16 gauge
18 gauge
20 gauge
Blood donation requires higher flow rates and larger bore needles; a 16-gauge needle is standard. Smaller gauges would slow collection and increase hemolysis. Proper gauge selection ensures donor comfort and sample quality. https://www.redcrossblood.org/donate-blood/how-to-donate/types-of-blood-donations.html
When should you check a patient for allergies before a blood draw?
After collecting the specimen
During tube labeling
Before performing the venipuncture
It's not necessary for venipuncture
Asking about allergies beforehand prevents administering any topical agents that could cause reactions. It is part of pre-procedure assessment to ensure patient safety. Ignoring this step risks allergic complications. https://www.jointcommission.org/standards/standard-faqs/national-patient-safety-goals-patient-safety/2020/06_patient_allergy/
What action should you take if a patient's ID armband is unreadable?
Ask a colleague to verify
Re-identify the patient and replace the armband before drawing
Guess based on chart information
Proceed but note it on the report
An unreadable armband prevents accurate identification, risking specimen errors. You must verify identity with another staff member and apply a new band. Patient safety protocols mandate clear identification before collection. https://www.jointcommission.org/standards/standard-faqs/critical-access-hospital-and-hospital-patient-safety/qs_patient_id/000002406/
Why is adherence to the order of draw important when collecting multiple tubes?
To maintain needle sterility
To speed up the collection process
To prevent additive carryover that can affect test results
To avoid mixing blood types
Each tube contains specific additives that can contaminate subsequent tubes if drawn out of sequence. Additive carryover may cause clotting, altered cell counts, or chemical interference. Proper order preserves specimen integrity and accuracy. https://www.cdc.gov/labquality/quality/blood-collection.html
Which tube would you select for trace element analysis such as zinc or copper?
Yellow-top (ACD)
Green-top (heparin)
Royal blue-top with no additive
Tan-top (EDTA)
Royal blue tubes are manufactured with certified low trace-metal content and contain no additives, preventing contamination. They are specifically used for toxicology and trace element testing. Using other tubes risks false elevations. https://www.fda.gov/medical-devices/ivd-regulatory-assistance/blood-collection-tubes
What is the standard centrifugation protocol for serum separator tubes (SST)?
2 minutes at 4,000 rpm
5 minutes at 1,000 rpm
15 minutes at 1,500 rpm
10 minutes at 3,000 rpm
SST tubes require 10 minutes at approximately 3,000 rpm (or equivalent g-force) to form a proper gel barrier. Insufficient spin time or speed may result in incomplete separation and sample contamination. Always follow the manufacturer's instructions. https://www.clsi.org/standards/products/clinical-laboratory-standards-institute/clsi-document-p111/
How should a cold agglutinin test specimen be handled before analysis?
Keep at 37°C until separation to prevent false positives
Freeze for transport
Refrigerate immediately
Expose to room temperature for 30 minutes
Cold agglutinins react at lower temperatures, so warming samples at 37°C prevents in vitro agglutination. Failure to keep specimens warm can lead to cell clumping and invalid test results. Proper handling ensures accurate titers. https://www.ncbi.nlm.nih.gov/books/NBK470271/
Which anticoagulant is used specifically for platelet function testing?
Heparin
EDTA
3.2% sodium citrate
Potassium oxalate
Sodium citrate preserves platelet morphology and function by chelating calcium without causing platelet activation. EDTA can alter platelet shape, and heparin may interfere with aggregation assays. Citrate is the standard for coagulation and platelet tests. https://www.clsi.org/standards/products/clinical-laboratory-standards-institute/clsi-document-g008/
Why is the basilic vein considered a last resort for venipuncture?
It is deeper than other veins
It has the slowest blood flow
It is more prone to hematoma
It is close to the brachial artery and median nerve
The basilic vein lies near critical structures like the brachial artery and median nerve, increasing risk of nerve injury and arterial puncture. It's often less stable and more painful. Phlebotomists reserve it if other veins are inaccessible. https://www.ncbi.nlm.nih.gov/books/NBK279393/
What does lipemic interference refer to in laboratory assays?
Turbidity from triglycerides causing erroneous absorbance readings
Increased clotting due to fatty acids
Interference in cell counts by lipids
Hemolysis from lipid solvents
Lipemia causes sample turbidity that scatters light in spectrophotometric assays, leading to falsely high or low results. Centrifugation or ultracentrifugation may be required to clear the sample. Recognizing lipemic samples prevents misinterpretation. https://en.wikipedia.org/wiki/Lipemia
What is the recommended drying time for povidone-iodine antiseptic before puncture?
30 seconds
No waiting required
5 seconds
At least 2 minutes
Povidone-iodine requires at least two minutes to penetrate the skin and provide effective antisepsis. Insufficient drying can lead to sample contamination. Alternative agents like chlorhexidine have shorter drying times. https://www.cdc.gov/infectioncontrol/guidelines/disinfection/healthcare-settings.html
In bilirubin testing, what special handling is required for the specimen?
Protect from light to prevent degradation
Keep at 4°C to stabilize
Freeze immediately
Shake vigorously before analysis
Bilirubin is light-sensitive and can degrade when exposed, leading to falsely low values. Specimens should be wrapped in foil or kept in amber tubes. Proper handling preserves accurate test results. https://www.clsi.org/standards/products/clinical-laboratory-standards-institute/clsi-document-g008/
According to OSHA, when should used needles be disposed of in a sharps container?
After recapping carefully
After finishing all collections
Immediately after use without recapping
At the end of the shift
OSHA mandates immediate disposal of used sharps into puncture-resistant containers to prevent needlestick injuries. Recapping increases risk of accidental sticks. Proper disposal ensures workplace safety. https://www.osha.gov/sharps
Which device is commonly used to standardize bleeding time tests?
Hemocue analyzer
Tourniquet cuff
Lancet depth micrometer
Ivy bleeding time template
The Ivy template places a standard incision on the forearm and measures bleeding duration under a regulated pressure cuff. It provides reproducible conditions for hemostasis assessment. Other tools are not specific for bleeding time. https://www.ncbi.nlm.nih.gov/books/NBK470271/
What is the main hazard of using expired evacuated blood collection tubes?
Tube breakage on insertion
Additive degradation causing clotting
Unexpected chemical reactions
Loss of vacuum leading to incorrect fill volume
Expired tubes may lose vacuum, resulting in underfilled specimens and incorrect blood-to-additive ratios. This alters test accuracy, particularly for coagulation assays. Using in-date tubes ensures reliability. https://www.fda.gov/medical-devices/ivd-regulatory-assistance/blood-collection-tubes
How can a phlebotomist minimize contamination when collecting blood cultures?
Use sterile gloves and thoroughly disinfect bottle tops
Wipe off the first drop of blood
Draw cultures last in the order of draw
Invert the bottles 10 times after filling
Sterile technique and proper disinfection of bottle septa reduce the risk of skin flora contaminating cultures. Drawing blood cultures first also avoids additive interference. Contaminated cultures can lead to misdiagnosis. https://www.clsi.org/standards/products/microbiology/documents/m47/
What is the maximum recommended depth for a heel stick in infants?
2.0 mm
4.0 mm
1.0 mm
3.0 mm
Infant heel sticks should not exceed 2.0 mm to avoid bone injury. Using standardized lancets helps maintain safe depth. Proper technique prevents long-term complications. https://clsi.org/standards/products/micro/specimen-collection/
Why must coagulation tubes be filled to the manufacturer's indicated volume?
To allow adequate mixing
To prevent clot activator loss
To maintain the correct blood-to-additive ratio for accurate results
To ensure the tube seal remains intact
The 9:1 blood-to-citrate ratio is critical for reliable coagulation testing. Underfilling alters this ratio, leading to prolonged clotting times. Overfilling can dilute the sample. https://www.clsi.org/standards/products/clinical-laboratory-standards-institute/clsi-document-g008/
Which analyte is most significantly affected by delayed separation of plasma from cells?
Alanine aminotransferase (ALT)
Calcium, due to chelation
Potassium, due to leakage from cells
Glucose, due to stabilization by fluoride
Delayed separation allows cells to leak potassium into plasma, falsely elevating results. Glucose is also affected but fluoride slows glycolysis. ALT and calcium are less impacted by cell contact. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2795330/
Which phlebotomy complication is characterized by pain, numbness, and tingling down the arm?
Arterial puncture
Nerve injury from posterior wall puncture
Phlebitis
Hematoma formation
Hitting or tracking along a nerve causes paresthesia symptoms like pain, numbness, and tingling. The median nerve is especially vulnerable near the basilic vein. Avoiding deep or misplaced needle angles prevents this injury. https://www.ncbi.nlm.nih.gov/books/NBK538405/
In therapeutic phlebotomy for hemochromatosis, approximately how much blood is removed per session?
1,000 mL
100 mL
500 mL
250 mL
Standard therapeutic phlebotomy removes about 500 mL of blood weekly to reduce iron stores in hemochromatosis. Removing this volume safely lowers ferritin without causing anemia. Smaller or larger volumes are not typical protocols. https://www.ncbi.nlm.nih.gov/books/NBK285564/
Which component in blood culture bottles neutralizes antibiotics present in the patient's blood?
Resins or activated charcoal
Heparin
EDTA
Sodium citrate
Resin beads or charcoal in culture media bind and neutralize antibiotics, improving yield of organisms in culture. Without these agents, bloodborne antibiotics may inhibit bacterial growth. This enhances detection of bacteremia. https://www.clsi.org/standards/products/microbiology/documents/m47/
For cold agglutinin titers, what special handling is essential?
Protect from light
Maintain specimen at 37°C until testing
Chill at 4°C for 30 minutes
Freeze at -20°C
Cold agglutinins bind at lower temperatures; warming to 37°C prevents in vitro clot formation. Specimens held cold may show false agglutination. Proper temperature control ensures accurate titers. https://www.ncbi.nlm.nih.gov/books/NBK470271/
Which step is critical in maintaining chain-of-custody for legal blood draws?
Removing the tourniquet after labeling
Documenting every transfer with signatures and timestamps
Storing samples in a refrigeration unit
Using colored labels
Chain-of-custody requires rigorous documentation of each handoff, with signatures and times, to ensure legal integrity. Colored labels alone do not prove continuity. Proper records are admissible in court. https://www.ncbi.nlm.nih.gov/books/NBK562279/
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Study Outcomes

  1. Understand Phlebotomy Protocols -

    Recall and explain the correct order of draw, tube additives, and essential steps introduced in phlebotomy quizlet chapter 7 to ensure accurate specimen collection.

  2. Apply Venipuncture Techniques -

    Demonstrate proper needle selection, site preparation, and phlebotomy procedures to perform safe and effective blood draws in clinical scenarios.

  3. Analyze Patient Assessment Factors -

    Evaluate patient history, vein selection criteria, and potential complications to adapt your approach for diverse patient needs and conditions.

  4. Demonstrate Sample Handling and Labeling -

    Show competence in labeling, storing, and transporting specimens according to best practices to maintain sample integrity and prevent errors.

  5. Evaluate Safety and Infection Control Measures -

    Identify and implement standard precautions, sharps disposal, and equipment sterilization protocols to minimize risk of contamination and injury.

  6. Differentiate Common Laboratory Tests -

    Compare the requirements, purposes, and interpretation guidelines for routine tests covered in chapters 7 - 9 to enhance your test-ordering and result-analysis skills.

Cheat Sheet

  1. Order of Draw -

    Focus on the CLSI-recommended sequence to prevent cross-contamination of additives: blood culture, citrate, serum, heparin, EDTA, and glycolytic inhibitors. Use the mnemonic "Boys Love Ravishing Girls But Usually Prefer Pink" to recall tube colors. Practicing this sequence on a phlebotomy quizlet chapter 7 flashcard helps reinforce muscle memory.

  2. Needle Gauge and Angle -

    Selecting the correct gauge (21 - 23 gauge for adult patients) ensures optimal blood flow and minimal hemolysis. Insert at a 15° - 30° angle targeting the center of the vein, and practice this on a phlebotomy chapter 9 quiz simulation or clinical lab session. Mastering angle and gauge helps you maintain patient comfort and specimen integrity.

  3. Patient Identification and Prep -

    Verify two identifiers (name and date of birth) against the test order and ID band before phlebotomy to meet Joint Commission standards. Cleanse the site with 70% isopropyl alcohol using a circular motion and allow it to air-dry for 30 seconds to reduce contamination. This step review from quizlet phlebotomy chapter 8 underscores patient safety and sample reliability.

  4. Tube Mixing and Handling -

    Invert additive tubes gently 5 - 10 times immediately after collection per manufacturer guidelines (for example, 8 - 10 inversions for EDTA) to avoid clotting or hemolysis. Never shake tubes vigorously; instead roll them between your hands for even mixing. Incorporate this into your chapter 7 phlebotomy practice test to perfect your technique.

  5. Hemolysis Prevention Techniques -

    Minimize tourniquet time to under one minute and avoid using small-bore needles on large-bore veins to reduce red cell rupture. If hemolysis occurs, repeat the draw with a new needle and tube, and document any preanalytical errors. These tips from the Clinical and Laboratory Standards Institute help you score high on a phlebotomy quiz for chapters 7-9.

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