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Why are EDTA specimens obtained before other specimens when collected by skin puncture?
EDTA specimens are obtained first to prevent contamination of the blood with elements released during the skin puncture process, such as potassium and glucose, which could affect the accuracy of subsequent tests. EDTA also helps to preserve the integrity of the blood cells for hematologic testing.
Why are EDTA specimens obtained before other specimens when collecting by skin puncture?
to minimize effects of platelet clumping
Skin puncture blood most closely resembles what kind of fluid?
Skin puncture blood most closely resembles venous blood, which is the blood collected from veins for laboratory tests. However, it may contain some interstitial fluid due to the puncture of capillaries in the skin during the collection process.
What preparation is necessary before a hemoglobin test?
No special preparation is required other than cleaning and disinfecting the skin at the puncture site. Blood is collected in a tube by venipuncture.
What test specimen is collected first by capillary puncture?
cbc
Hemolysis in skip puncture specimens may be caused by?
squeezing the site too hard
How much psi does it take to puncture the skin?
It typically takes about 14 psi (pounds per square inch) to puncture human skin. However, the exact amount can vary depending on factors such as the thickness of the skin, the angle of the object, and the force behind the puncture.
How did Alfred Russell Wallace fund his voyages?
he sold many of the specimens he collected
Do tattoos puncture veins?
No, a tattoo needle doesn't penetrate the skin deeply enough to puncture a vein.
What is proper skin puncture procedure of in phlebotomy?
In phlebotomy, proper skin puncture procedure involves selecting an appropriate site, usually the fingertip or heel for infants, and ensuring the area is clean by using an antiseptic wipe. The puncture should be made at a 15-30 degree angle using a sterile lancet, avoiding excessive pressure to prevent hemolysis. After the puncture, blood should be collected quickly and efficiently, and the site should be covered with a clean bandage post-collection. Always follow safety and infection control protocols throughout the process.
What is Procedure to skin prior to routine puncture?
Clean the skin if practical and necessary. Then, applicaiton of disinfectant if the skin is not punctured (alcohol) or antiseptic if the skin is punctured (betadyne, hydrogen peroxide). With puncture wounds, plan on a tetanus update, if necessary.
Why should laboratory report form indicate the fact that a specimen has been collected by skin puncture?
The laboratory report form should indicate that a specimen was collected by skin puncture to ensure accurate interpretation of results, as this method can influence the concentrations of certain analytes due to factors like hemolysis or contamination. It also helps laboratory personnel assess the validity of the sample and consider any potential discrepancies in results. Additionally, knowing the collection method aids in proper patient management and follow-up by healthcare providers.
