The following points highlight the three main methods which should be adopted during bleeding time. The methods are: 1. Finger Tip Method 2. Duke's Method 3. Ivy’s Method. Bleeding time is duration of bleeding form a standard puncture wound on the skin which is a measure of the function of the platelets as well as integrity of the vessel wall. [...]
In this article we will discuss about the mechanisms and stages of blood clotting. Mechanism of Blood Clotting: Blood Clotting is one of three mechanisms that reduce the loss of blood from broken blood vessels. The three Mechanisms are: i. Vascular Spasm: The smooth muscle in blood vessel walls contracts immediately the blood vessel is broken. This response reduces blood [...]
It is necessary to determine haematocrit with 6 hours after the blood collection. Principle: Blood is centrifuged in sealed capillary tube and PCV is determined by a special haematocrit reader. Requirements: Haematocrit Centrifuge: 1. It runs at high speed and produces RCF of 12,000 X g and runs at a speed of about 15,000RPM. It contains a head to hold [...]