Table of Contents
- 1 What blood is obtained from a dermal puncture?
- 2 What 3 types of blood does a dermal puncture contain?
- 3 What are the different types of blood draws?
- 4 What is the difference between venipuncture and capillary puncture?
- 5 What is another name for a dermal puncture?
- 6 When would you use a dermal puncture?
- 7 What is the correct order of draw in phlebotomy?
- 8 Why would you use a dermal puncture instead of venipuncture?
What blood is obtained from a dermal puncture?
Dermal Puncture and Capillary Blood Collection (Online CE Course) Phlebotomists and point-of-care instrument operators (laboratory, nursing and respiratory therapy personnel) frequently need to perform dermal punctures to collect capillary blood specimens for testing.
What 3 types of blood does a dermal puncture contain?
Course Outline
- Venous, Arterial, and Capillary Blood Specimens.
- Dermal Puncture vs Venipuncture.
- Which of these patients may NOT be a candidate for capillary blood collection by dermal puncture?
How do you perform dermal puncture?
Perform the skin puncture.
- Place the puncture device on the patient’s skin and activate the release mechanism.
- For infants, the heel puncture should be no deeper than 2.0 mm.
- Wipe the first drop of blood away with dry gauze.
- Grasp the foot or finger between the thumb and first finger and apply gentle pressure.
What are the different types of blood draws?
Three popular methods of blood collection are:
- Arterial Sampling.
- Venipuncture Sampling.
- Fingerstick Sampling.
What is the difference between venipuncture and capillary puncture?
The procedure is easier and less painful than traditional venipuncture which draws blood from a vein. In order to collect blood with a capillary tube, the appropriate site must be cleaned and punctured with a lancet so that a drop of blood can be gently expressed.
What does dermal puncture mean?
A dermal (skin) puncture may be required when a venipuncture cannot be performed or may be the option of choice for some point-of-care test procedures. A dermal puncture may be a fingerstick or, in the case of small infants, may be a heelstick.
What is another name for a dermal puncture?
What is another name for a dermal puncture? Capillary stick.
When would you use a dermal puncture?
What is a dermal puncture?
What is the correct order of draw in phlebotomy?
ORDER OF DRAW If just a routine coagulation assay is the only test ordered, then a single light blue top tube may be drawn. If there is a concern regarding contamination by tissue fluids or thromboplastins, then one may draw a non-additive tube first, and then the light blue top tube.
Why would you use a dermal puncture instead of venipuncture?
The dermal puncture minimizes the amount of blood taken from the patient. This will be important to consider, especially with infants in an intensive care nursery. However, some laboratory tests require larger amounts of blood for testing; in these cases, capillary collection is not an option.
Which of these patients may not be a candidate for capillary blood collection by dermal puncture?
Which of these patients may NOT be a candidate for capillary blood collection by dermal puncture? -The index finger is not recommended for dermal puncture because it is often more sensitive or calloused than the middle or ring fingers (the fingers that are recommended).