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 do genetic mutations influence biological diversity, How do genetic mut...

How do genetic mutations influence biological diversity? Too frequent or too extensive genetic mutations usually are deleterious for individuals and species. These mutations fr

Define the intradermal dye test, Define the Intradermal Dye Test? The r...

Define the Intradermal Dye Test? The rate of decolouration of a small quantity of the dye, 2, 6- dichlorophenol injected intradermaly is an index of the ascorbic acid nutrition

Sunshine recorder, Sunshine recorder Sunshine recorder (Figure shown be...

Sunshine recorder Sunshine recorder (Figure shown below) measures the duration of sunshine. The recorder consists essentially of a glass sphere of about 10 cm in diameter mount

Regulatory factors, 1. Describe how the hypothalamus regulates the secretio...

1. Describe how the hypothalamus regulates the secretion of anterior pituitary hormones and identify all of the individual hypothalamic regulatory factors. Describe how the hypotha

Heavy metals require for the normal finctioning of our body, Q. Heavy Metal...

Q. Heavy Metals require for the normal finctioning of our body? Like the foods we consume, our bodies also contain many metallic elements. Most of these metals are actually r

Abo blood compatibility for the safety of blood transfusion, Is ABO blood c...

Is ABO blood compatibility enough for the safety of blood transfusion? Moreover ABO blood compatibility the compatibility concerning the Rh blood system must also be checked. A

What is cellulose, What is cellulose? Cellulose is a long-chain polymer...

What is cellulose? Cellulose is a long-chain polymeric polysaccharide carbohydrate, of beta-glucose. It creates the primary structural component of green plants. The primary ce

Historical review of developmental biology, HISTORICA L REVIEW Anox...

HISTORICA L REVIEW Anoximander (600 B.C.) was the first western philospher who proposed the idea that "living creatures arose from the moist element". Empedocles (500 B.

Guess the number of different haploid cells, A diploid cell contains four p...

A diploid cell contains four pairs of homologous chromosomes designated C1 and C2, M1 and M2, S1 and S2, and W1 and W2. Predict the number of different haploid cells that could be

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