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

What is the life cycle of plasmodium vivax, Q. What is the life cycle of Pl...

Q. What is the life cycle of Plasmodium vivax? The vector mosquito bites a infected person and ingests female and male gametocytes of the parasite. Within the insect gut the ga

Explain the procedure for preparation of culture media, Explain the Procedu...

Explain the Procedure for Preparation of Culture Media? Now carry out the exercise following the steps given herewith: 1. To prepare potato dextrose medium, first, peel off

What are the applications of pcr, Polymerase chain reaction already has ext...

Polymerase chain reaction already has extremely widespread applications and new uses are being devised on a regular basis. Some and definitely not all of the applications are given

Genomic blot, Genomic blot is the type of Southern blot particularly used ...

Genomic blot is the type of Southern blot particularly used to analyze the mixture of DNA fragments derived from total genomic DNA. Because the genomic DNA is quite complicated, w

What is the significance of torsion, What is the significance of torsion? ...

What is the significance of torsion? An unusual twisting of the gastropod body which has left all members of class with an asymmetric body plan and a U-shaped alimentary tract,

What is alleles, Whenever a pair of alleles has different alleles is there ...

Whenever a pair of alleles has different alleles is there dominance between them? Not in all cases of a gene having two different alleles is the dominance complete. There are g

Describe the nature of the polymorphism, 1. DNA damage can occur spontaneou...

1. DNA damage can occur spontaneously or be induced by external factors. Describe the types of DNA damage caused by external factors and how they are repaired in prokaryotes and eu

What are the results of atrial septal defect, What are the results of Atria...

What are the results of Atrial Septal Defect ? Mortality for ASD closure has approached 0 per cent in most cardiac surgery centers. Late survival of patients who has ASD closu

Colour coding rules for biomedical waste management, Q. Discuss the colour ...

Q. Discuss the colour coding rules for biomedical waste management and handling? Colour coding biomedical waste( management and handling) rules, 1998

Embryonic development, Embryonic Development The embryonic stage exte...

Embryonic Development The embryonic stage extends from the second week by the 8th week and is charactrised by formation of placenta, the development of internal organs and ap

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