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

Descriptions of the genera, Q. Descriptions of the genera? A manual is ...

Q. Descriptions of the genera? A manual is a book that contains information on the area of coverage and keys and descriptions of the families, genera and species including the

Brain region responsible for the equilibrium of the body, Q. Which is the b...

Q. Which is the brain region responsible for the coordination and equilibrium of the body? In the central nervous system the cerebellum is the main controller of the motor equi

What are pentoses, What are pentoses? What are the roles of pentoses in DNA...

What are pentoses? What are the roles of pentoses in DNA and RNA molecules? Pentoses are carbohydrates made of five carbons. The DNA molecule is made of a sequence of molecu

Behavioural adjustments, Behavioural Adjustments When faced with a su...

Behavioural Adjustments When faced with a sudden temperature change, most animals make behavioural responses that enable them to avoid extreme or lethal conditions. Among the

Sex, how to do sex ?

how to do sex ?

Coronary flow limiting stenoses, Coronary Vasoconstriction 1) Coronary f...

Coronary Vasoconstriction 1) Coronary flow limiting stenoses are caused by concentric or eccentric artherosclerotic plaques, with or without potential for local vasomotor change

Entropy, Entropy is the degree of disorder in a system. As the energy is t...

Entropy is the degree of disorder in a system. As the energy is transferred from one form to another form, some of it is lost as heat; as the energy decreases, the disorder in sys

Phylogeny, why do i do it for class/

why do i do it for class/

Barrier function of epithelium and endothelium in corneal, Explain about th...

Explain about the barrier function of epithelium and endothelium in corneal hydration. Barrier Function of Epithelium and Endothelium: Epithelium offers twice the resista

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