Phlebotomy Procedure Precautions and Tube Filling Order Quiz

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Questions and Answers

What is the maximum amount of time the tourniquet should be left on during venipuncture?

1 minute

If bleeding persists beyond how many minutes during venipuncture, should the patient's nurse or physician be notified?

5 minutes

What are some specimens that require special handling for accurate results?

Cooling in crushed ice (e.g., ammonia), transportation at body temperature (e.g., cold agglutinin), protection from light (e.g., bilirubin)

Where should contaminated items like blood-soaked gauze be discarded?

In biohazard containers Signup and view all the answers

What is the final step after transporting the specimen to the lab during venipuncture?

Thank patient, remove gloves, and sanitize hands Signup and view all the answers

In what order should the tubes be filled and mixed during the venipuncture procedure?

Order of draw Signup and view all the answers

What are some areas to be avoided during venipuncture?

Edematous areas, cyanotic areas, scarred areas, burned or tattooed areas, heavily calloused areas, traumatized areas or sites with hematoma, sclerosed or thrombosed veins, intravenous lines in both arms, arms with arteriovenous shunt or fistula, arms with cast/s, mastectomy Signup and view all the answers

Why should a discard tube be drawn first when using a COAGULATION TUBE as the first tube with a BUTTERFLY system?

To fill the tubing dead space and ensure a correct blood-to-anticoagulant ratio Signup and view all the answers

What is the recommended procedure for vein selection during venipuncture?

Palpate and trace the path of veins with the index finger. If a suitable vein cannot be found, massage the arm from wrist to elbow and apply a warm, wet towel to the site for a few minutes. Signup and view all the answers

Why should you avoid folding the arm back at the elbow after a blood draw?

Folding the arm back at the elbow increases the chance of bruising or disrupts the platelet plug when the arm is lowered. Signup and view all the answers

What is the recommended technique for cleaning and preparing the venipuncture site?

Clean the site with a circular motion, starting at the point of needle insertion and moving outward in concentric circles. Allow the area to air dry naturally for 30 seconds to 1 minute. Signup and view all the answers

What should be done after discarding the collection unit, syringe needle, or transfer device during venipuncture?

Clean and air-dry the site again. Signup and view all the answers

What is the angle range recommended for inserting a needle into the antecubital site for venipuncture?

30 degrees or less Signup and view all the answers

What should be done if the needle touches anything prior to venipuncture?

Remove it and replace it with a new one Signup and view all the answers

What information should be included on the labels for blood collection tubes?

Patient’s first and last names, identification number or date of birth, date and time of collection, Phlebotomist’s initials, pertinent additional information Signup and view all the answers

What should be done to avoid mislabeling errors?

Label tubes before leaving the bedside or dismissing the patient Signup and view all the answers

What is the angle range recommended for inserting a butterfly needle into a hand vein?

Between 10 and 15 degrees Signup and view all the answers

What should be the order of steps after establishing blood flow during venipuncture?

Release the tourniquet and ask the patient to release the fist Signup and view all the answers

Study Notes

Venipuncture Procedure Guidelines

Tourniquet and Bleeding Control

The tourniquet should not be left on for more than 1 minute.
If bleeding persists beyond 3 minutes, the patient's nurse or physician should be notified.

Special Specimen Handling

Some specimens require special handling for accurate results.

Disposal and Waste Management

Contaminated items like blood-soaked gauze should be discarded in designated areas.

Post-Specimen Transport

The final step after transporting the specimen to the lab is to ensure proper labeling and storage.

Tube Filling and Mixing Order

Tubes should be filled and mixed in a specific order during the venipuncture procedure.

Areas to Avoid

Certain areas should be avoided during venipuncture, such as joints and areas with poor circulation.

Coagulation Tube Procedure

When using a COAGULATION TUBE as the first tube with a BUTTERFLY system, a discard tube should be drawn first.

Vein Selection Procedure

The recommended procedure for vein selection during venipuncture involves selecting veins with good circulation and avoiding areas with risk of hematoma formation.

Post-Venipuncture Care

The arm should not be folded back at the elbow after a blood draw to prevent hematoma formation.

Site Preparation and Cleaning

The recommended technique for cleaning and preparing the venipuncture site involves using an antiseptic solution and allowing it to dry.

Disposal of Collection Unit and Needle

After discarding the collection unit, syringe needle, or transfer device, the hands should be washed and gloved.

Needle Insertion Angle

The recommended angle range for inserting a needle into the antecubital site is 15-30 degrees.
The recommended angle range for inserting a butterfly needle into a hand vein is 10-15 degrees.

Needle Contamination

If the needle touches anything prior to venipuncture, it should be discarded and a new one used.

Labeling and Identification

Labels for blood collection tubes should include patient identification, date, and time of collection.
To avoid mislabeling errors, labels should be checked carefully before applying them to the tubes.

Establishing Blood Flow

After establishing blood flow during venipuncture, the order of steps should be: releasing the tourniquet, mixing the tubes, and labeling the tubes.

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Description

Test your knowledge on phlebotomy procedure precautions and the correct order of filling tubes or syringes in a blood draw. Learn about areas to avoid during blood collection and the recommended sequence for drawing blood samples.