Diagnostic Tests

Tests to diagnose diabetes

Diabetes is confirmed by checking the results of several laboratory tests that assess the amount of glucose circulating in the blood: the fasting blood glucose test, the capillary blood glucose

What are TGO and TGP and what can change mean

TGO and TGP, also known as transaminases, are enzymes normally dosed with the aim of assessing liver health. TGO, known as oxalacetic transaminase or AST (aspartate aminotransferase) is produced

Urine cylinders: main types and what they mean

Cylinders are structures formed exclusively in the kidneys that are not often identified in the urine of healthy people. Thus, when cylinders are observed in the urine test, it may be an

Pyuria: what it is, symptoms and treatment

Pyuria, also popularly known as pus in urine, corresponds to the presence in large quantities of pyocytes, also called leukocytes, in urine. The presence of lymphocytes in the urine is considered

CA-125 exam: what it is for and values

The CA 125 exam is widely used to check a person's risk of developing some diseases, such as ovarian cancer, endometriosis or ovarian cyst, for example. This test is done from the analysis of a

What is Liver Biopsy for

A liver biopsy is a medical examination in which a small piece of the liver is removed, to be analyzed under the microscope by the pathologist, and thus, to diagnose or evaluate diseases that are

What is it for and how is the eye test done

The eye test, also known as the red reflex test, is a test performed during the first week of life of the newborn and which aims to identify early changes in vision, such as congenital cataracts,

Oximetry: what it is and normal saturation values

Oximetry is a test that allows measuring the oxygen saturation of the blood, that is the percentage of oxygen that is being transported in the bloodstream. This test is important when diseases

DNA testing: what it is for and how it is done

The DNA test is done with the aim of analyzing the person's genetic material, identifying possible changes in the DNA and verifying the probability of the development of some diseases. In

TSH test: what is it for and why is it high or low

The TSH exam serves to assess thyroid function and is usually requested by the general practitioner or endocrinologist, to assess whether this gland is functioning properly, and in case of

How to do breast self-examination: step-by-step

To do the breast self-examination it is necessary to follow three main steps which include observing in front of the mirror, palpating the breast while standing and repeat the palpation while

Ferritin: what it is and why it may be high or low

Ferritin is a protein produced by the liver, responsible for storing iron in the body. Thus, the examination of serious ferritin is done with the aim of checking the lack or excess of iron in the

Understanding the PSA exam result

PSA, known as Prostatic Specific Antigen, is an enzyme produced by prostate cells whose concentration may indicate changes in the prostate, such as prostatitis, benign prostatic hypertrophy or

Find out what cervical exams are

The cervical exam is usually done mainly by performing a test known as a pap smear, which is simple and painless and is important for all women, especially those of childbearing age. This test

How meningitis is diagnosed

The diagnosis of meningitis is made through clinical observation of the symptoms of the disease and confirmed by means of an exam called a lumbar puncture, which consists of the removal of a small

Hemogram reference values

The reference values ​​of the complete blood count generally vary according to the patient's sex and age, however, it is also possible to observe differences in the values ​​depending on the

What is otoscopy and what is it for

Otoscopy is an examination performed by an otorhinolaryngologist who serves to assess the structures of the ear, such as the ear canal and eardrum, which is the very important membrane for hearing

Hybrid capture: what it is and how it is done

Hybrid capture is a molecular test capable of diagnosing the HPV virus even though the first symptoms of the disease have not appeared. It allows identifying 18 types of HPV, divided into low-risk

What is anuscopy, what is it for and preparation

Anuscopy is a simple test that does not need sedation, performed by a proctologist in a doctor's office or exam room, in order to check the causes of changes in the anal area, such as itching,

7 common questions about mammography

Do only people who have cancer in the family need a mammogram every year? And is there any way to make mammography a less uncomfortable exam? Find out these answers here. Mammography is an

What does high or low HCM mean on the CBC?

Average Corpuscular Hemoglobin (HCM) is one of the parameters of the blood test that measures the size and color of hemoglobin within the blood cell, which can also be called mean globular

What is audiometry and main types

Audiometry is an auditory examination that serves to assess the hearing capacity of the person in the interpretation of sounds and words, allowing the detection of important hearing changes,

When to measure blood pressure

If you suspect your blood pressure is high or low because you have symptoms such as blurred vision, blurred vision or dizziness, you should take your pressure immediately. However, people who are

What can be high or low leukocytes

Leukocytes, also known as white blood cells, are the cells responsible for defending the body against infections, diseases, allergies and colds, being part of the immunity of each

Recommended fasting time for blood test

Fasting for blood tests is very important and must be respected when necessary, as the intake of food or water can interfere with the results of some tests, especially when it is necessary to

What is arteriography and how is the exam done

Arteriography, also known as angiography, is a diagnostic tool that allows you to observe the circulation of blood and blood vessels in a specific region of the body, so that you can identify

Tests that confirm the presence of kidney stones

Usually the presence of kidney stones causes crises with symptoms of severe pain in the lower back, radiating to the foot of the belly and genital region, pain when urinating, blood in the urine

How to know if you have worms

The diagnosis of the presence of intestinal worms, also called intestinal parasites, must be made by the doctor according to the symptoms presented by the person and by laboratory tests capable of

Lymphocytes - What they are and Reference Values

Lymphocytes are a type of defense cell in the body, also known as white blood cells, which are produced in greater quantities when there is an infection, and are therefore a good indicator of the

Tests for the diagnosis of Endometriosis

In case of suspected endometriosis the gynecologist, or the fertility specialist, may request exams such as transvaginal ultrasound, the CA125 exam or an MRI scan, but in some specific cases

What is Bone Scintigraphy for and how is it done?

Bone scintigraphy is a diagnostic imaging test used, most of the time, to assess the distribution of bone formation or remodeling activity throughout the skeleton, and inflammation points caused

High or low amylase: what it is and what it means

Amylase is an enzyme produced by the pancreas and salivary glands, which acts on the digestion of starch and glycogen contained in food. Generally, the serum amylase test is used to help diagnose

Fetal sexing: what it is, when to do it and results

Fetal sexing is an exam that aims to identify the baby's sex from the 8th week of pregnancy through the analysis of maternal blood, in which the presence of the Y chromosome, which is present in

What is Electromyography and what is it for

Electromyography consists of an examination that assesses muscle function and diagnoses nervous or muscular problems, based on the electrical signals that the muscles release, enabling the