Skin puncture - specimen collection, Biology

Assignment Help:

Skin puncture: skin puncture is usually done when small volume of blood is needed (e.g., blood glucose test) to avoid unnecessary venipuncture.

However, skin puncture in time consuming and have greater risk of infections than venipuncture because fingertip is more difficult to sterilized than the anticubital fossa. In an adult or grown child, blood may be collected by puncturing the tip of the finger or by piercing the earlobe. In an infant of less than 1 year of age, the lateral and medial planter surface of the foot should be used for skin puncture. 

Area should be sterilized by 70 % isopropanol, then all alcohol allowed to dry, and skin is quickly punctured by a lancet. Massage of the finger to stimulate blood flow should be avoided because it causes flow of debris and tissue fluid, which does not have the same composition as plasma have. Blood may be collected by a capillary blood tubes by capillary attraction. Filter paper is used for collection of capillary blood used in neonatal screening.

 


Related Discussions:- Skin puncture - specimen collection

How the needles are classified by thier point geometry, How the needles are...

How the needles are classified by thier point geometry Needles may also be classified by their point geometry; examples include: - taper (needle body is round and tapers smo

What is surgical therapy, Surgical Therapy The clinician may use a surg...

Surgical Therapy The clinician may use a surgical approach when non-surgical therapies are not indicated or are unsuccessful. The surgical techniques are modified from those

Conduits-surgery for coronary artery disease, Conduits Figure: Ve...

Conduits Figure: Venous Conduits Reversed saphenous vein was the first conduit used for CABG. 'It is usually harvested from the leg starting above the ankle going up

Intro to Genetics and Punnett Squares , "Height" is an example of a gene, b...

"Height" is an example of a gene, but "Short" is an example of...

Populations of predators and prey vary in predatism, Q. How do populations ...

Q. How do populations of predators and prey vary in predatism? Whenever a predator population enhance at the first moment the prey population tends to reduce. At a second momen

Neurons, how does sodium and potassium ions maintain the resting petential ...

how does sodium and potassium ions maintain the resting petential of neurons

Self help group - psychoactive substance use disorders, Self Help Group: ...

Self Help Group: The first and perhaps the most influential of substance abuse rehabilitation is Self Help Group. The self help programme was founded in 1935 by two men, Dr. B

Which type of molecule does each of these enzymes break, Besides the pancre...

Besides the pancreatic juice in the intestine there is the releasing of the enteric juice that having digestive enzymes too. What are these enzymes and which type of molecule does

Risk factors of cardiovascular disease, Q. Show Risk factors of cardiovascu...

Q. Show Risk factors of cardiovascular disease? Various risk factors of cardiovascular disease. We will now briefly mention the causes related to hypertension. 1. Genetic

Describe metabolic acidosis and respiratory acidosis, Q. What is the differ...

Q. What is the difference between metabolic acidosis and respiratory acidosis and what is the difference between metabolic alkalosis and respiratory alkalosis? Respiratory acid

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd