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What are the Types of Blood Tests? And What are the Tips & Precautions Taken Before & After?

What are the Types of Blood Tests? And What are the Tips & Precautions Taken Before & After?

June 19, 2023 by admin0

Blood tests play a crucial role in diagnosing and monitoring various health conditions. They provide valuable insights into the functioning of our bodies and help healthcare professionals make informed decisions. Understanding the different types of blood tests and taking necessary precautions before and after the tests can contribute to accurate results and a positive experience. Matrix Diagnostics is the best diagnostic center in Hyderabad equipped with advanced technology. We offer a broad spectrum of services to diagnose and evaluate medical conditions. Our diagnostic services in Hyderabad may include imaging studies (such as X-rays, CT scans, MRI scans, ultrasound, and mammography), laboratory tests (blood tests, urine tests, genetic testing), cardiac testing (ECG, stress tests, echocardiography), respiratory function tests, endoscopy, and health checkup packages in Hyderabad.


Types of Blood Tests:

  • Complete Blood Count (CBC): A complete blood count measures the levels of red blood cells, white blood cells, and platelets in the blood. It provides essential information about the overall health of your blood and helps detect various conditions such as anaemia, infections, and blood disorders. The CBC includes the following components:
    * Red Blood Cells (RBC): Measures the number and size of red blood cells, indicating oxygen-carrying capacity.
    * White Blood Cells (WBC): Assess the immune system’s response and detects infections or inflammations.
  • Haemoglobin (Hb): Measures the amount of oxygen-carrying protein in the blood.
  • Lipid Profile: A lipid profile measures cholesterol and triglyceride levels in the blood. It provides valuable information about your cardiovascular health and helps assess the risk of heart disease. The components of a lipid profile include:
    * Total Cholesterol: Measures the total amount of cholesterol in the blood, including both high-density lipoprotein (HDL) and low-density lipoprotein (LDL) cholesterol.
    * HDL Cholesterol: Known as the “good” cholesterol, it helps remove LDL cholesterol from the bloodstream.
    * LDL Cholesterol: Referred to as the “bad” cholesterol, high levels can contribute to plaque formation in the arteries.
  • Blood Glucose Test: A blood glucose test measures the amount of sugar (glucose) in your blood. It plays a crucial role in diagnosing and managing diabetes. Depending on the type of test, you may need to fast for a specific period beforehand. The common types of blood glucose tests include:
  • Fasting Plasma Glucose (FPG): Requires fasting for at least 8 hours before the test to obtain an accurate baseline glucose level.
  • Oral Glucose Tolerance Test (OGTT): Involves drinking a glucose solution and measuring blood sugar levels at various intervals afterward.
  • Hemoglobin A1c (HbA1c): Provides an average blood sugar level over the past 2-3 months, reflecting long-term diabetes control.
  • Liver Function Test (LFT): A liver function test evaluates the health and functioning of the liver by measuring specific enzymes, proteins, and bilirubin levels. It helps detect liver diseases, monitor medication side effects, and assess overall liver function. The components of an LFT include:
  • Kidney Function Test: A kidney function test evaluates the kidneys’ ability to filter waste products and maintain electrolyte balance. It involves measuring the levels of creatinine, blood urea nitrogen (BUN), and electrolytes. This test helps diagnose kidney disorders and monitor the effectiveness of kidney-related treatments. The components of a kidney function test include:
  • Creatinine: A waste product produced by muscle metabolism, which is eliminated by the kidneys.
  • Blood Urea Nitrogen (BUN): Measures the amount of nitrogen in the blood, an indicator of kidney and liver function.
  • Electrolytes: Include sodium, potassium, and chloride levels, which affect fluid balance and nerve function.
  • Thyroid Function Test: A thyroid function test measures the levels of thyroid-stimulating hormone (TSH), as well as thyroid hormones T3 (triiodothyronine) and T4 (thyroxine). It helps diagnose thyroid disorders such as hypothyroidism (underactive thyroid) and hyperthyroidism (overactive thyroid). The components of a thyroid function test include:


Tips and Precautions Before Blood Tests:

Follow fasting instructions, if applicable:

  • Some tests require fasting for accurate results, typically for 8-12 hours.
  • Avoid eating or drinking anything other than water during the fasting period.
  • Communicate with your healthcare provider: Inform your healthcare provider about any medications, supplements, or allergies you have. Discuss any concerns or questions you may have about the blood test.
  • Stay hydrated: Drink plenty of water before the test to make it easier for the healthcare professional to draw blood.


Tips and Precautions After Blood Tests:

Apply pressure:

  • After the blood sample is taken, apply gentle pressure to the site with a cotton ball or gauze to stop bleeding.
  • Maintain pressure for a few minutes and avoid heavy lifting or vigorous exercise immediately after the test.
  • Stay hydrated and eat: Drink fluids and have a light meal, as advised by your healthcare provider. This helps restore energy and replenish blood volume.
  • Monitor for adverse reactions: While rare, some individuals may experience dizziness, lightheadedness, or bruising at the blood draw site. If you experience any concerning symptoms, inform your healthcare provider.
  • Follow instructions for result interpretation: Discuss the test results with your healthcare provider to understand their implications fully. They will provide guidance on any necessary follow-up steps or treatments.


Blood tests offer valuable insights into our health and aid in diagnosing and managing various medical conditions. By understanding the different types of blood tests and following the tips and precautions mentioned above, you can ensure accurate results and a smooth experience. Remember to communicate with your healthcare provider and address any concerns you may have to make the most of your blood tests and maintain your well-being.


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