Credible Solutions for your Health
Why should I have laboratory tests done?

Today, doctors and healthcare practitioners rely extensively on laboratory test results along with your medical history, a physical exam, and probably other diagnostic procedures and imaging studies to make healthcare decisions.

Who orders laboratory tests?

Licensed healthcare providers (doctors) usually order laboratory tests based on the clinical history and physical examination in order to make the right diagnosis. However in India, laboratory test may be requested for by the patients themselves.

Who interprets laboratory tests?

The doctor that ordered your test is the best person to interpret the results of the laboratory tests based on your clinical history and signs and symptoms. However we provide interpretative reporting of test results if you require. Laboratory medicine expert interprets the results of tests making for a better diagnosis and thus treatment.

How are laboratory tests used?

Laboratory tests are useful in three ways:

  • Screening/Preventive health test: Laboratory test results may identify the risk of disease or a medical condition in patients who present no symptoms. This allows for early diagnosis, which enables doctors to better treat or to prevent disease from occurring. Good examples are our 'CREST MyHealth' packages designed for various age groups.
  • Diagnosis: Laboratory tests help identify or exclude the presence of a condition or an illness in patients who have symptoms. Examples include a pregnancy test or a blood count for anaemia. Sometimes laboratory tests tell the medical practitioner what stage a disease is in.
  • Management: Laboratory tests help doctors determine the prognosis or course a disease is likely to take, monitor how the disease progresses, determine if a disease is recurring and decide on what drugs or other treatment will be likely to help a patient. Antibiotic susceptibilities that predict how an infection will respond to specific drugs are an example of this type of test.

Why is choosing the right lab so important?

Over 75% of the decisions your doctor makes about your health care are based on laboratory results. Your doctor is depending on information received from your laboratory to make the best possible choices for you. So it's important to make sure your laboratory provides the highest quality results.

  • HbA1c level < 5.7% is normal.
  • In a diabetic, HbA1c level <7.0% indicates good control.
Are all laboratories the same or is there a difference between laboratories?

All laboratories strive to provide accurate and reliable laboratory results. However, in your best interests you would be advised to do your tests in a laboratory that is run and managed by laboratory medicine expert, a qualified clinical pathologist, who not only understand but also interpret your test results. Credible results are important to ensure you get the right treatment from your healthcare provider.

Can I go to any laboratory of my choice?

You can choose to go to any laboratory. If your doctor wants you to go to a particular laboratory, you may follow that advice. But if your doctor does not specify one, you can choose whichever laboratory you prefer.

Why do you ask for my personal information more than once?

Laboratories process several samples daily. Personal information in the form of name, age and address are repeatedly asked by laboratory personnel to ensure that we have the right information and also that you get your own results—not someone else's as your treatment depends on these results This is an important part of our quality assurance.

How does the laboratory ensure that "my sample" is not mixed up with "another patient's sample"?

The laboratory has a tested and fool proof system in place where all samples are collected into labelled containers. Your sample is assigned a unique computer generated number and you are assigned a unique identification number. The laboratory information software and the trained personnel ensure that only those tests that are billed for a particular patient are performed and only those results are released.

Why and when do you need more than one vial of blood?

We continually work to make sure our tests require the least amount of blood possible. Still, different tests often require separate tubes of blood. This depends on the tests your doctor requests. You can rest assured that we will only draw the minimum amount of blood required.

How can I make it hurt less?

Drawing blood does hurt. The best way to make the process easier and pain free is simply to trust your phlebotomist. All of our phlebotomists are highly trained, and they take pride in making the process as pleasant and pain-free as possible. If having your blood drawn makes you nervous, talk to your phlebotomist. This can help us to find a way to make things more comfortable for you.

What are the risks associated with blood collection?

Blood collection is performed by trained phlebotomists who ensure that there is minimal discomfort during the procedure. However, you may experience bleeding or bruising at the site, tingling of the arm from which blood is collected or a painful swelling.

What can I do to limit these problems?

Our phlebotomists apply pressure on the puncture site and place a medicated plaster on the puncture site. You could leave the plaster on for at least 4-6 hours; carry items using the opposite arm at least for 2 hours after collection, avoid lifting heavy objects with the arm from which blood has been collected, avoid activities that will put stress on the puncture site.

Am I at risk of catching anything by having my blood taken?

We use only sterile equipment and a closed system for blood collection. Our specimen collection staff are trained in infection control. 

I have very difficult veins. How can I be sure your phlebotomists can get the sample?

We have a set of phlebotomists or blood collection staffs that are trained by both professionals and in-house to carry out both routine and difficult collections. We also use the most appropriate system for the vein. Some of our staff are specially trained to collect samples from small babies and children.
If you have any concerns about having your sample taken, we encourage you to talk to us before samples are drawn.  

I have recently had major surgery/bed-bound and cannot get to the laboratory. How can I get my test done?

You can call our laboratory to request for our phlebotomists/technical staff to schedule a visit to your house to collect samples. You are advised to use these services for a genuine need.

I need to give a fasting sample but had coffee/juice in the morning, should I reschedule the test?

Yes, you need to reschedule the test. Tests that require a fasting sample should be given following an overnight fast of 8-12 hours. You may however drink water. All scheduled medication may be taken.

What is a Complete Blood Count?

Synonyms: CBC, CBC with differential, blood count
There are three main categories of cells in human blood: Red Blood Cells (RBCs), White Blood Cells (WBCs) and platelets.
A complete blood count, or CBC, is a count of the red blood cells, white blood cells and platelets in a definite volume of blood. A CBC also includes a measurement of haemoglobin, the protein that carries oxygen within the red blood cells. A haematocrit is a measurement of the percent volume of red cells, white cells and plasma. A differential WBC count is a count of the different types of white blood cells. A CBC also includes ESR or Erythrocyte Sedimentation Rate that tells you about health and disease. A CBC can tell you a great deal about the state of your health. Medical conditions that cause an abnormal blood count include anaemia, the presence of an infection and some kinds of cancer and bleeding disorders. Blood counts can be used for screening, diagnosis or management of certain diseases and medical conditions.

What does a routine urine examination include?

Synonyms: Routine urinalysis, UA
Routine urinalysis includes the examination of the physical, chemical characteristics and microscopic elements of urine.
Urine examination is usually done on a urine sample that is provided at any time of the day without any specific patient preparation.
Physical and chemical characteristics include colour, appearance, specific gravity (a measure of dissolved substances), pH (acidity), the presence of protein, glucose (sugar), occult ("hidden") blood, ketone bodies, bilirubin and urobilinogen. The microscopic examination may find casts, crystals, blood and other types of cells.
A simple routine urinalysis can tell your doctor a great deal. Diabetes, urinary tract infections and kidney problems are among the many medical conditions that can be detected by routine urinalysis results. Very often, a routine urinalysis is part of a general physical exam.
A routine urinalysis does not detect drugs of abuse. A special drugs-of-abuse screening test is used to detect the presence of those substances.

  • CREST Laboratories is a testing centre started, managed and run by trained laboratory professionals with vast experience and expertise in laboratory medicine.
  • CREST Laboratories believes and implements QUALITY-ONE TIME TESTING
  • CREST Laboratories provides interpretative and consultative test reporting
  • At CREST Laboratories, Quality is the mantra. Attention is paid to all aspects of testing from pre-analytical, analytical and the post-analytical phases.
  • CREST Laboratories has adopted good laboratory practices as defined by national and international standards
  • CREST Laboratories has adopted state of the art technology from leading players in the In-vitro diagnostics industry to provide reports comparable to the best in the world
  • Fully automated 6-part haematology cell counters
  • Fully automated coagulometer
  • HBLC Analyser
  • Platelet function analyser
  • Automated chemistry analysers
  • Immunoassay analyser
  • Electrolytes analyser
  • Flow Cytometer
  • Urine Analyser
  • In house phlebotomist for sample collection
  • Phlebotomist on call
  • Electronic despatch of reports - A near zero visit quality experience
  • A sophisticated LIS system is installed to meet the patient information requirements.
  • All results are authenticated and then authorised by qualified experts
  • Interpretative and Consultative services from laboratory medicine expert
  • The laboratory is set up to meet the highest compliance standards followed in the country. The industry best practices are imbibed into day-to-day operations.
  • LIC Reporting : Sophisticated LIS supports report validation by in-house experts before despatch.
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