The Arneth count is the determination of the percentage distribution of different types of neutrophils on the basis of their nuclear lobes. It is not commonly used in modern medicine. Joseph Arneth classified neutrophils into […]
The term ketone bodies refers to three intermediate products of fat metabolism, namely acetone (2%), acetoacetic acid (20%) and beta-hydroxybutyrate (78%). Under normal conditions, metabolized fats are completely broken down to water and carbon dioxide, […]
Scrub typhus is an acute, febrile, infectious disease that is caused by bacteria called Orientia tsutsugamushi. It is a zoonotic disease (an animal disease that can spread to humans) primarily affecting rodents, rabbits and marsupials. […]
The coronavirus disease 2019 (COVID-19), is an illness caused by the most recently discovered coronavirus called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It is an enveloped, positive sense, single-stranded ribonucleic acid (RNA) virus with […]
Wright’s stain is a type of Romanowsky stain, which is commonly used in hematology laboratory for the routine staining of peripheral blood smears. It is also used for staining bone marrow aspirates, urine samples and […]
Anemia is a condition of decrease in number of circulating red blood cells (and hence hemoglobin) below a normal range for age and sex of the individual, resulting in decreased oxygen supply to tissues. Megaloblastic […]
Cross matching is a procedure performed prior to transfusion of blood or blood products to detect any serological incompatibilities in the blood of donor and recipient. Before a donor’s blood is transfused into a recipient, […]
Urinary casts are tiny cylindrical, tube-shaped particles that can be found during the microscopic examination of urine. Casts are the only elements found in the urinary sediment that are unique to the kidney. Tamm-Horsfall mucoprotein […]
The Mantoux test is a qualitative, skin test to screen in vivo sensitization by Mycobacterium tuberculosis either due to active infection or past infection. It is also used to check the prophylaxis and efficacy of […]
The Roundworm, Ascaris lumbricoides is the largest nematode parasite in human intestine. Disease caused by A. lumbricoides is called Ascariasis. Laboratory diagnosis of ascariasis can be made by demonstration of parasite (eggs, larvae or adult […]
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