Podcast
Questions and Answers
What is the primary purpose of a bleeding time test?
What is the primary purpose of a bleeding time test?
To assess platelet function and the body's ability to form a clot.
List three factors that bleeding time is dependent on.
List three factors that bleeding time is dependent on.
Capillary function, number of blood platelets present, and the ability to form a platelet plug.
What is the normal range for bleeding time in minutes?
What is the normal range for bleeding time in minutes?
1-3 minutes
According to the Dukes method, how often should the pricking point be touched to the filter paper after the initial touch?
According to the Dukes method, how often should the pricking point be touched to the filter paper after the initial touch?
Explain how aspirin intake prior to the procedure may affect bleeding time results.
Explain how aspirin intake prior to the procedure may affect bleeding time results.
What is the potential impact of residual alcohol on the puncture site when performing a bleeding time test?
What is the potential impact of residual alcohol on the puncture site when performing a bleeding time test?
List the steps that are followed once the finger is pricked.
List the steps that are followed once the finger is pricked.
Name three materials required to conduct a bleeding time test using the Dukes method.
Name three materials required to conduct a bleeding time test using the Dukes method.
Describe one procedural error that could cause inaccurate bleeding time result.
Describe one procedural error that could cause inaccurate bleeding time result.
What is the step taken when the blood stops?
What is the step taken when the blood stops?
What does bleeding time measure?
What does bleeding time measure?
In the Dukes method, why is it important not to squeeze the finger while blotting the blood?
In the Dukes method, why is it important not to squeeze the finger while blotting the blood?
Explain why the puncture location matters when performing bleeding time test.
Explain why the puncture location matters when performing bleeding time test.
If a patient's bleeding time is significantly longer than the normal range, what might this indicate?
If a patient's bleeding time is significantly longer than the normal range, what might this indicate?
During the bleeding time procedure, what is the significance of using a sterile lancet?
During the bleeding time procedure, what is the significance of using a sterile lancet?
If the filter paper runs out of space before the bleeding stops, what adjustment should be made in the procedure?
If the filter paper runs out of space before the bleeding stops, what adjustment should be made in the procedure?
Why is it important to start the stopwatch immediately when performing the bleeding time procedure?
Why is it important to start the stopwatch immediately when performing the bleeding time procedure?
What information should be written on the filter paper before beginning the bleeding time procedure?
What information should be written on the filter paper before beginning the bleeding time procedure?
Why should alcohol completely dry before making the puncture?
Why should alcohol completely dry before making the puncture?
Name the method to determine bleeding time.
Name the method to determine bleeding time.
Flashcards
Bleeding Time
Bleeding Time
A lab test to assess platelet function and the body's ability to form a clot.
Bleeding time depends on:
Bleeding time depends on:
Effective capillary function, adequate blood platelet count, and the ability to form a platelet plug.
Dukes method: Materials
Dukes method: Materials
Sterile lancet, timer, circular filter paper, spirit and cotton swabs, gloves.
Aspirin and Bleeding Time
Aspirin and Bleeding Time
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Puncture errors
Puncture errors
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Alcohol and Bleeding Time
Alcohol and Bleeding Time
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Normal Bleeding Time
Normal Bleeding Time
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Study Notes
- Bleeding time is a lab test to assess platelet function and the body's ability to form a clot.
- Bleeding time depends on capillary function, number of blood platelets present, and the ability to form a platelet plug.
Dukes Method Materials
- Sterile, disposable blood lancet
- Stopwatch (timer)
- Circular filter paper
- Spirit and cotton swabs
- Gloves
Dukes Method Procedure
- Take filter paper, fold, and record number of seconds.
- Set stopwatch to zero and prick finger.
- Immediately touch the pricking point to the filter paper at 0 seconds and start the stopwatch.
- After initial touch, touch the pricking part to the filter paper every 30 seconds, avoid squeezing finger.
- Check the seconds mark on the filter paper when the blood stops.
- Normal bleeding time value is 1-3 minutes.
Sources of Error
- Prolonged bleeding time can occur with aspirin intake 7 to 10 days prior to the procedure.
- Improperly performed puncture (too shallow, too deep, or inappropriate location) leads to error.
- Alcohol must be completely dried before puncture.
- Residual alcohol leads to prolonged bleeding time (BT).
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