0
Which fingers should be used for dermal puncture to obtain capillary blood specimens?
For dermal puncture to obtain capillary blood specimens, the recommended fingers are typically the middle or ring finger of the non-dominant hand. These fingers have adequate blood supply and are less likely to be calloused compared to the index finger. The puncture should be made on the side of the fingertip to minimize discomfort and maximize blood flow. In infants, the heel is often used for this procedure.
What else can I help you with?
Is there another name for dermal puncture?
capillary blood collection
What is dermal puncture?
Dermal puncture refers to a technique used to obtain capillary blood samples by pricking the skin using a lancet or needle. It is commonly done on the finger, heel, or other suitable site for blood collection in medical settings such as hospitals, clinics, or laboratories.
What complications are associated with dermal puncture?
osteomylist
What happens when you warm the site of a dermal puncture?
Increases blood flow to the site
List a test that is taken from a dermal puncture and explain why this preferred over a venipuncture?
One example of a test taken from a dermal puncture is a blood glucose test. Dermal punctures are preferred for this test as they are less invasive, cause minimal discomfort, and can be easily performed on individuals with difficult-to-access veins such as infants or elderly patients.
What test results are affected when povidone iodine is used to cleanse the site for a dermal puncture?
Povidone-iodine may elevate test results for bilirubin, uric acid, phosphorus, and potassium, and therefore is not recommended for use with dermal puncture
What is the site of the dermal ridges that produce epidermal ridges on the epidermal surfaces of the fingers called?
The site of the dermal ridges that produce epidermal ridges on the fingers is called the dermal papillae. These papillae create the unique patterns found on the fingertips, known as fingerprints.
What is the depth for doing a dermal puncture on a patient?
For dermal puncture, the depth is typically 2.4 millimeters (mm) or less, which is around 2-3 mm in adults and 0.85-1.0 mm in infants. It is important to control the depth to avoid going too deep and causing pain or complications.
What part of the skin causes the skin surface have ridges on the tips of the fingers and toes?
dermal papillae
When it is best to perform a dermal puncture rather than a venipuncture on children?
A dermal puncture is preferred over a venipuncture in young children, especially infants, when obtaining small blood samples is necessary, such as for blood glucose monitoring or when only a few drops of blood are required. It minimizes discomfort and reduces the risk of complications associated with larger needles and venous access. Additionally, dermal punctures are often more convenient and can be performed quickly at the point of care.
Can dermal puncture and venipuncture collections be alternated on a patient receiving h and h tests?
If you are trying to compare numbers from one draw to the next, it would be best to use the same procedure each time. Dermal puncture and venipuncture can give different answers depending on technique.
What is the vitamin d precursor produced in the dermal capillary that aids calcium absorption?
The precursor produced in the dermal capillary is 7-dehydrocholesterol, which is converted to vitamin D3 (cholecalciferol) in the skin upon exposure to ultraviolet B light. Vitamin D3 plays a crucial role in aiding calcium absorption in the intestine, which is essential for maintaining bone health and overall mineral balance in the body.
