PCV

PCV also referred to as haematocrit, is performed to test the volume of red blood cells in the blood sample. Red blood cells are very vital as they transport oxygen to the different regions of the body. This test aids in the assessment of anaemia, monitoring blood disorders, and dehydration and blood loss diagnosis among other things. 

Packed Cell Volume (PCV) is the measurement of the part of blood that is made up of red blood cells in the blood sample. The result is expressed as a percentage (%) or in decimal form (e.g. 0.45). 

In case the patient shows signs of exhaustion, lethargy, paleness of the skin, or breathing difficulties, PCV is routinely done along with a Complete Blood Count (CBC). Doctors might also give the order to keep an eye on patients with various conditions that can impact the rate of red blood cells production or destruction like anaemia, bone marrow disorders, or other bleeding disorders. 

The risks with PCV testing are quite low. Side effects can entail damages such as: 

• Bruising at the site when the blood was drawn. 
• Slight discomfort where the needle entered. 
• Dizziness or light-headedness. 
• A hematoma, which is bruised skin with visible blood under. 

Further limitations involve:  

• Improper labelling of a sample which underwent haemolysis (destruction of red blood cells) will cause negative accuracy. 
• Result elevation through dehydration or blood loss. 
• Specifics like equipment and a capable technician. 

The following are evaluated. 

• Red blood cells 
• Haemoglobin 
• White blood cells 
• Platelets 

Possible Adjustments: 

• Patient’s age 
• Primary illnesses 
• Any drugs impacting leukocyte/erythrocyte count. 

Others who might benefit from the PCV tests are those who: 

• Show symptoms of Anaemia (tiredness, pale, short-winded). 
• Have a history suggests a family with anaemia or blood related disorders. 
• Are undergoing treatment for Cancer or Bone Marrow complications. 

Medications affecting the blood cell counts may have an impact when taking this test.  

PCV tests: 

• Assists in evaluating and monitoring levels of anaemia. 
• Evaluates and monitors a patient’s blood health. 
• Monitors how effective the treatment for the patient is. 
• Offers details that ensure the patient is taken care of in the best possible way. 

The PCV test can provide diagnosis for the following: 

• Anaemia (iron deficiency anaemia, iron deficiency, vitamin deficiency anaemia, thalassemia) 
• Blood disorders like leukaemia, lymphoma, multiple myeloma and even more chronic ones. 
• Disorders associated with bleeding like haemophilia. 
• Dehydration or loss of a lot of blood. 

There are no preparations that need to be done prior to the test. 

Prerequisites: None 

Eligibility: Everyone in the public regardless of their age qualifies for the PCV test.  

Procedure of Taking the Test: 

1. Blood will be collected by appropriate personnel from a vein in a person’s arm. 

2. A sample of blood is taken to a lab for testing. 

Caution Before Taking the Test:  Prior to taking the test, ensure you disclose all the medication and supplements you take to your health care provider in order ensure your test results are accurate.