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Frequently Asked Questions (FAQ)
Are my allergies treatable?

Although some allergies are treated as the child grows, they are often permanent in adults. The worst reactions, e.g., anaphylaxis caused by peanut are generally here to stay. The safest approach to avoid from allergen and be prepared in advance against the exposures that occur accidentally is to carry antihistaminic and adrenalin injections with you. Although immunotherapy may help reduce complaints in some inevitable allergies, it doesn't work for food allergies. It may be required to make injections in food allergies at regular intervals generally for years.

Can I have tests performed in your laboratory before doctor request sheet?

It isn't required if you will not make use of your health insurance.

Do you have blood taking service at home and in the workplace?

Yes, it is essential to get an appointment 1 day ago from our branch, which is close to the location from where you will request service.

Does determination of early beta cell lysis ensure protection from diabetes?

It is still not ensured. It enables dealing with diabetes as soon as disease symptoms such as frequent urination, weight loss and hyperglycemia appear. It may help to control diabetic blood glucose and minimize the formation potential of complications such as kidney and eye damage, which may be observed in diabetes.

Does drinking water affect test results before giving blood when hungry?

Drinking much water may affect some parameters. It is allowed to drink so long as it is not more than one glass.

Does drinking water just before throat culture affect the test?

You should not eat or drink anything before taking the throat culture (1 hour) or gargle.

Does smoking affect test results before giving blood when hungry?

Yes, some test results are especially affected, it is recommended not to smoke.

How can I detect whether I am a Mediterranean anemia carrier?

You can learn it easily by taking a hemoglobin electrophoresis test.

How long one should wait before taking blood from a baby through urine bag?

You can wait until sufficient amount of urine accumulates. However,  the bag must be replaced if sufficient amount is not provided within 30 minutes after the bag is attached.

How many hours of fasting is required for the tests requiring fasting, what time should be my last meal?

Average ideal fasting period should be 8-10 hours, although it changes according to the tests. 12-14 hours of fasting is required for Triglyceride measurements. You should not eat after 10.00 pm in the evening.

I do not consume these foods, why did I have cellular type allergy?

It may be hidden in the consumed foods.

The reason may be the consumption from the same family as the food causing the antibody generation.

If my AFP test is normal, normal or abnormal, do I need to take any other tests?

In case of chronic liver disease or damage, high AFP levels subject to disease are determined. If your AFP increases rapidly or is very high, your doctor will generally request examination of your liver through ultrasonic investigation, BT or MR screening. These screening operations may generally detect existing liver cancers. Your surgeon may also request des-gama carboxyl prothrombin (DCP) test in the blood sample helping to detect liver cancer.

In which stages are genetic tests are applied?

After birth

Before birth (during pregnancy) 

Within pre-implantation period (before pregnancy) 

Is any diet regimen required before having secret blood test made in stool?

No, it is not. We work with the tests, which are sensitive to a substance (human hemoglobin) only in human blood, in the methods we use in our laboratory.

What are genetic diagnosis methods?

Chromosome analysis

FISH analysis 

PCR analysis

DNA serial analysis 

Real time PCR analysis 

Is fasting definitely needed for each test?

No, but you must definitely be fasting before if you will have one of the following tests performed. 

Tests requiring fasting:

1,25 – Dihydroxy vitamin D3 
ADH (Vasopressin) 
Alfa-Tocoferole (Vitamin E) 
Alkaline phosphates (ALP) 
Alkaline phosphates isoenzyme 
Beta-crossLaps (Beta-CTx) 
Growth Hormone (GH) 
Total iron binding capacity
Unsaturated iron binding capacity 
Free Fat Acids (FFA) 
Folic Acid 
Cholesterol, total 
Cholesterol, HDL 
LDL Cholesterol (minimum 12-hours of fasting is required) 
LDL Sub-groups (minimum 12-hours of fasting is required) 
Lipoprotein (a) 
Lipoprotein Electrophoresis 
Parathyroid Hormone (PTH) 
Bile Acids 
Triglycerides (minimum 12-hours of fasting is required) 
Vitamin B12
Urea Breath Test

Is it possible to conduct urine analysis and culture during menstrual periods?

As menstrual blood may be leaked in the urine given during menstrual period, culture and direct microscopic analyses are affected. It isn't possible to distinguish where the erythrocytes to be seen in microscopic analysis stem from. As the microorganisms, which are normally available in the menstrual blood and vagina, may contaminate with the urine, which is expected to be sterile, causing misleading results. Therefore, urine analysis and culture are not performed in menstrual period.

Is it possible to make culture tests while having antibiotics?

As antibiotics may reduce bacteria production, they may also prevent growth altogether. Therefore, they affect the results. This is why it is recommended to take a culture test at least after 2 days following last antibiotic dosage although it varies based on the type of the antibiotic. If it is recommended to give blood during antibiotic use within the approval of your doctor, the name and the dose of the antibiotic must be indicated to laboratory official.

Is preliminary preparation required for carrying out direct mycetes analysis or mycetes culture?

Mycetes medications should not be used at least for 3 days before having mycetes analysis and mycetes culture made, and it is recommended not to wash this area in the samples to be taken from skin or nails. If sample will be taken from the nails, it is essential not to cut the nails for one week.

My complaints continue although allergy test is negative. What else may the problem be?

You may have a problem of genetic hypersensitivity such as sensitivity to gluten in celiac disease or similar to lactase deficiency leading to intolerance to lactase; however, there isn't any laboratory test for this. It is important to examine your individual conditions, consulting your doctor.

My fasting blood glucose is high. Am I diabetic?

Fasting blood glucose may go up to 140 mg/dl for just once or twice due to factors such as what you ate the previous day as well as stress, drinking coffee etc. It is essential to consult an internal medicine specialist to consult for higher values. For the results around 140 mg /dl, postprandial blood sugar may be studied in the laboratory after 2 hours following the meal. If the result of this test is around 140-160 mg/dl, Oral Glucose Tolerance Test is performed. You are made to drink 75 or 100 g glucose, depending on your weight, after taking the fasting blood. This is followed by taking your blood for 4 times at ½ or 1-hour intervals. Glucose is studied from these blood samples. Insulin hormone discharge against the standard glucose given to you and cleaning your blood glucose from blood samples in this period is checked by means of a tolerance curve. If the results obtained are considered high by the expert in the laboratory, you should consult to an endocrinologist.

What are the most frequent symptoms of CYBH?

Urination or pain or burning during sexual intercourse

Interim bleeding other than menstrual period

Red and puffy genital area


Bleeding during sexual intercourse

Apophyse in genital area, open injuries, swellings, colored eruption

What are the rules to be obeyed for the blood samples taken for genetic tests?

Firstly, it is not necessary for the patients, whose blood will be taken, to be fasting a day before the test. Unless otherwise specified, blood samples taken in this respect, should definitely not be frozen and they should be delivered to the laboratory within the shortest time possible by carrying them in room temperature.

What are the symptoms of food allergy?

Dyspepsia, ganglion, intestine problems

Skin rashes, itching, redness

Headache, migraine

Fatigue, weakness (chronic fatigue syndrome)


Fibromyalgia (Myalgia)

What are the symptoms of intestinal disorders?

•  Dyspepsia, intumescences, diarrhea and constipation, hemorrhoid, blood in stool

•  Fatigue, weakness, myalgia and arthralgia, rheumatismal diseases

•  Depression and neural system diseases

What is Beta HCG Hormone for?

Beta HCG hormone is used for detecting pregnancy. This hormone shows an increase firstly in blood and then in the urine. As from the 6th or 8th day following impregnation, Beta HCG hormone increases in blood. And when pregnancy takes place, Beta HCG hormone values double. The value in Beta HCG hormone decelerates and starts to slow down in ongoing months of pregnancy. In a pregnancy in which maternity progresses normally, the level of Beta HCG hormone is also utilized to determine the week of pregnancy therein. This hormone test is a reliable test that yields result within a short time.

What is Down Syndrome?

A chromosome anomaly syndrome that emerges with one more dose of 21st chromosome in the number of chromosome, which is 46 in the cell of a normal person. In most of the patients, this extra 21st chromosome appears to be attached to 46 chromosomes and existence of 47 chromosomes comes into question in the patient. In a small part of the patients (~4%), material that belongs to such extra 21st chromosome may be located on a different chromosome (translocation type). This is important both for investigating family transportation and determination of risk of recursion. Patients have mental deficiency. Typical face symptoms and several additional symptoms may be observed in the patients as well as mental deficiency. It is essential to conduct peripheral blood analysis for the person who is considered to have Down syndrome and genetic consultation should be provided upon the results.

What is the difference between celiac disease and allergy against wheat and other cereals?

Allergies include hypersensitivity reactions and formation of specific IgE (immunoglobulin E) antibodies against cereals such as wheat and rye. These antibodies may result in some complaints similar to that of celiac disease. But, such symptoms will occur in a short time after you have taken the food against which you have developed an allergy. Although the reactions may be severe or mild, they have a limited impact and they do not damage the layer inside your intestine as celiac disease does. If you think that you may have allergy against wheat or another cereal food, you should consult your doctor who may order these specific IgE antibody tests for you.

What should I pay attention to while giving urethral discharge samples for sexually transmitted diseases?

While the discharge culture is taken, it is primarily essential to clean urethra orifice with a sterile napkin and then swab the discharge and place it into special carrier tube. Then deliver the sample to our laboratory as soon as possible.

When and how often tests should be done for HIV?

Phase 1 (7-21 days)



(However, as the limit of deviation in the kits used for HIV RNA detection is 50 sample/mL and more, it may not be possible to perform HIV RNA detection, which is anticipated to be under this level!)

Phase 2 and 3 (17-35 days)

HIV p24 antigen POSITIVE
Phase 4 (27-45 days)
p24 antigen POSITIVE
HIV antibody may be POSITIVE 

Which type of samples is used for conducting genetic tests?

Different tissue samples may be used based on requested test type for genetic analysis. 

1. After birth


bone marrow 

Skin tissue 

Buccal cells 

Tumor tissue 

Paraffin tissue 

Vaginal smear 



2. Pregnancy period 

Amniotic fluid

Chorionic tissue 

Fetal blood

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The information provided on this site is intended for your general knowledge only and is not a substitute for professional medical advice or treatment for specific medical conditions.