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

Stereoisomers , Glyceraldehyde has a one asymmetric carbon atom the central...

Glyceraldehyde has a one asymmetric carbon atom the central one and so two stereoisomers  which is also known as optical isomers are possible, which is two forms of glyceraldehyde,

Describe the function of gastrin in the digestive process, Q.How is it prod...

Q.How is it produced and what is the function of gastrin in the digestive process? The existence of food in the stomach stimulates the secretion of gastrin that in its turn tri

Assessment of diastolic function, Diastolic dysfunction is  responsible for...

Diastolic dysfunction is  responsible for one third of cases of heart  failure alone and rest two  third of cases in  combination with systolic dysfunction. Diastolic dysfunction c

Arterial system of mammal, ARTERIAL SYSTEM OF MAMMAL Basic plan from...

ARTERIAL SYSTEM OF MAMMAL Basic plan from origin to distribution is similar in all vertebrates as per the mode of respiration. Main anterior aorta in terrestrial forms ar

Potassium ions maintain the resting potential of neuron, Q. How do the pota...

Q. How do the potassium and sodium ions maintain the resting potential of the neuron? The plasma membrane of the neuron when at rest maintains an electric potential difference

The dna revolution, Unprecedental clarity has come to our understanding of ...

Unprecedental clarity has come to our understanding of genetic differences by the analysis of DNA sequences. It is not surprising in which the latest DNA technologies are leading t

Discuss about impermeable membrane, An impermeable membrane separates one l...

An impermeable membrane separates one liter of a 0.01 M glucose solution in water in the left compartment from one liter of a 0.1 M glucose solution in water in the right compartme

Platyhelminthes, tell me the general characters of monopisthocotylea

tell me the general characters of monopisthocotylea

What devices used for oxygen therapy, What Devices Used for Oxygen Therapy?...

What Devices Used for Oxygen Therapy? Variable performance systems: With these devices, the FiO 2 would vary depending on the patient's breathing pattern. In general, rapid, s

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