expert type icon EXPERT

Dr. Stephen Ovanessoff

Pathologist

Dr. Stephen Ovanessoff is a top Pathologist in Tempe, . With a passion for the field and an unwavering commitment to their specialty, Dr. Stephen Ovanessoff is an expert in changing the lives of their patients for the better. Through their designated cause and expertise in the field, Dr. Stephen Ovanessoff is a prime example of a true leader in healthcare. As a leader and expert in their field, Dr. Stephen Ovanessoff is passionate about enhancing patient quality of life. They embody the values of communication, safety, and trust when dealing directly with patients. In Tempe, Arizona, Dr. Stephen Ovanessoff is a true asset to their field and dedicated to the profession of medicine.
Dr. Stephen Ovanessoff
  • Tempe, Arizona
  • MD at College of Medicine University of Baghdad
  • Accepting new patients

What does a low white blood cell count mean?

The white blood cells consist mainly of two components, Lymphocytes, and granulocytes. Either component may be below the acceptable range, or both components can be lowered. The READ MORE
The white blood cells consist mainly of two components, Lymphocytes, and granulocytes. Either component may be below the acceptable range, or both components can be lowered. The simplest and commonest cause is usually infection, particularly a viral infection (quite common in children) or less likely bacterial infection. There can be other underlying causes too. The pediatrician will often be able to recognize the underlying cause and sometimes may order some tests to confirm or rule out a particular cause. The pediatrician may also decide to refer his patient to a hematologist for further evaluation if an underlying cause is not apparent.

How is a sample collected for a pus culture?

A sample of the purulent material (pus) is sampled by a sterile swab and submitted into a sterile tube or culture collecting medium.

My ENT found a mass in my neck. What could it be?

Depending on your age and site of the mass. It may represent a cyst (acquired or congenital), a reactive lymph node, inflamed salivary gland or a tumor (benign or malignant). The READ MORE
Depending on your age and site of the mass. It may represent a cyst (acquired or congenital), a reactive lymph node, inflamed salivary gland or a tumor (benign or malignant). The material sent for pathological examination may reveal its nature. Sometimes a biopsy or resection of the mass is required for a complete pathological evaluation.

What tests will be done to confirm anemia?

The initial test is to check your blood for hemoglobin level, shape, and size of the red blood cells. Based on the findings other tests may be required.

What precautions should pathologist take when dealing with samples of contagious diseases?

There is a protocol/List of Universal precautions that is officially mandated for use and that applies to all health workers, including pathologists. It is available online.

Can creatinine fluctuate between morning and night?

Wide fluctuations of the creatinine levels between morning and night are not normal. The levels are influenced by many factors including medications, treatments, diet, underlying READ MORE
Wide fluctuations of the creatinine levels between morning and night are not normal. The levels are influenced by many factors including medications, treatments, diet, underlying disease and most of all the status of the renal function.

What is the platelet count for which a dengue test is recommended?

Dengue fever is one of the so-called "hemorrhagic fevers" caused by a virus. The platelet count, as well as the white cell (WBC) count, are often reduced in a CBC test result, READ MORE
Dengue fever is one of the so-called "hemorrhagic fevers" caused by a virus. The platelet count, as well as the white cell (WBC) count, are often reduced in a CBC test result, but are not specific. Testing for evidence of Dengue virus infection is one of the tests considered for patients that have appropriate epidemiological history, signs, and symptoms, as well as preliminary laboratory tests that suggest the possibility of such an infection.

Can the infection causing a pneumonia show in a blood test?

Blood testing is not usually used to detect the type of organism causing pneumonia. If the infection disseminates into the blood, causing generalized infection (septicemia), then READ MORE
Blood testing is not usually used to detect the type of organism causing pneumonia. If the infection disseminates into the blood, causing generalized infection (septicemia), then organisms may be detected in blood culture testing.

What is stem cell banking? Is it really worth it?

Cord blood is rich with stem/precursor cells, that can mature/develop into a variety of mature blood cells. Cord blood can be preserved, maintaining its viability (stem cell banking) READ MORE
Cord blood is rich with stem/precursor cells, that can mature/develop into a variety of mature blood cells. Cord blood can be preserved, maintaining its viability (stem cell banking) for many years. It can be used to revitalize the bone marrow of the individual if that individual develops a disease, usually a malignancy that consumes his or her bone marrow.

What is a pus culture?

A pus culture is when a sample of the pus (purulent material) is collected under sterile circumstances and tested for microorganism identification, usually by applying the collected READ MORE
A pus culture is when a sample of the pus (purulent material) is collected under sterile circumstances and tested for microorganism identification, usually by applying the collected sample into "culture media", the latter being prepared material that promotes growth of microorganisms. Once growth is identified, it is classified as to the type of organism and based on this knowledge, the person is treated.

Second opinion on biopsy?

Melanocytic skin lesions, can be benign or malignant. It is not unusual for a pathologist to seek second expert opinion on a case, since some of these lesions may have borderline READ MORE
Melanocytic skin lesions, can be benign or malignant. It is not unusual for a pathologist to seek second expert opinion on a case, since some of these lesions may have borderline atypical features that are difficult to interpret as benign or malignant by a general pathologist. For such cases it would be prudent to request the opinion of an expert dermatopathologist.

What causes constant fluttering of the eyelids?

The usual cause is fatigue and stress.

My urine culture report was sent to another lab for a bacteria resistance report. Why does this happen?

Bacterial resistance testing is performed to see if a certain bacterial growth is sensitive or resistant to the effect of different antibacterial agents. Some labs may not be equipped READ MORE
Bacterial resistance testing is performed to see if a certain bacterial growth is sensitive or resistant to the effect of different antibacterial agents. Some labs may not be equipped to perform that test, also known as a sensitivity test.

How long should a urine culture take?

Not really. Sometimes culture results take longer than usual. The result should be valid if the culture processing is properly performed.

My son's arterial blood gas test in the hospital is showing a high level of CO2. Should we get this checked again?

This might be related to his pneumonia. Repeat testing after complete recovery from pneumonia should show improvement.

Why do they send a mole biopsy sample for second opinion?

To confirm or rule out a diagnosis that may have requirements for further specialized treatment.

What are the tests to confirm dengue?

Your child should be seen by a pediatrician and/or infectious disease specialist before ordering tests.

Home diabetes testing device and lab report show different results. What is more accurate?

There can be many variables that determine the blood sugar levels. These include, the nutritional status (fasting/ non-fasting), prior physical activity, time of day test performed, READ MORE
There can be many variables that determine the blood sugar levels. These include, the nutritional status (fasting/ non-fasting), prior physical activity, time of day test performed, technique, etc etc., before the test is performed. These factors apply to both home device and outside lab testing. In general, outside lab test results are usually more accurate although the newer home testing devices are pretty accurate too.

My mother's biopsy confirmed a malignant tumor. Should we consider a second opinion before the treatment?

The specialist clinician in charge of your mother is usually the person that will request a second opinion, depending on the clinical findings.