Dayyal Dg.

BIOSCIENCE member since 2018-08-01 17:27:24

Clinical laboratory professional specialized to external quality assessment (proficiency testing) schemes for Laboratory medicine and clinical pathology. Author/Writer/Blogger

Dayyal Dg.
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Dayyal Dg.
Dayyal Dg. in Histopathology
Monday, 04 September 2017 12:55

Histopathology

Histopathology (compound of three Greek words: ἱστός histos "tissue", πάθος pathos "suffering", and -λογία -logia"study of") refers to the microscopic examination of tissue in order to study the manifestations of disease. Specifically, in clinical medicine, histopathology refers to the examination of a biopsy or surgical specimen by a pathologist, after the specimen has been processed and histological sections have been placed onto glass slides. In contrast, cytopathology examines (1) free cells or…

  • Histopathology
  • Article
  • Definition of Histopathology
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Dayyal Dg.
Dayyal Dg. in Physiology
Monday, 04 September 2017 12:39

Physiology

Physiology (/ˌfɪziˈɒlədʒi/; from Ancient Greek φύσις (physis), meaning 'nature, origin', and -λογία (-logia), meaning 'study of') is the scientific study of normal mechanisms, and their interactions, which works within a living system. A sub-discipline of biology, its focus is in how organisms, organ systems, organs, cells, and biomolecules carry out the chemical or physical functions that exist in a living system. Given the size of the field, it is divided…

  • Physiology
  • Article
  • Definition of Physiology
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Dayyal Dg.
Dayyal Dg. in Food Science
Monday, 04 September 2017 12:26

Food Science

Food science is the applied science devoted to the study of food. The Institute of Food Technologists defines food science as "the discipline in which the engineering, biological, and physical sciences are used to study the nature of foods, the causes of deterioration, the principles underlying food processing, and the improvement of foods for the consuming public". The…

  • Food Science
  • Article
  • Definition of Food Science
Read 1026 times
Dayyal Dg.
Dayyal Dg. in Ecology
Monday, 04 September 2017 12:01

Ecology

Ecology (from Greek: οἶκος, "house", or "environment"; -λογία, "study of") is the scientific analysis and study of interactions among organisms and their environment. It is an interdisciplinary field that includes biology, geography, and Earth science. Ecology includes the study of interactions that organisms have with each other, other organisms, and with abiotic components of their environment. Topics of interest to ecologists include the diversity, distribution, amount (biomass),…

  • Ecology
  • Article
  • Definition of Ecology
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Dayyal Dg.
Dayyal Dg. in Forensic Science
Monday, 04 September 2017 11:36

Forensic Science

Forensic science is the application of science to criminal and civil laws, mainly—on the criminal side—during criminal investigation, as governed by the legal standards of admissible evidence and criminal procedure.   Forensic scientists collect, preserve, and analyze scientific evidence during the course of an investigation. While some forensic scientists travel to the scene of the crime to collect the evidence themselves,…

  • Forensic Science
  • Forensic Pathology
  • Article
  • Definition of Forensic Science
Read 851 times
Dayyal Dg.
Dayyal Dg. in Clinical Pathology
Wednesday, 30 August 2017 18:26

MICROSCOPIC EXAMINATION OF FECES

Microscopic examinations done on fecal sample are shown in Figure 846.1. Collection of Specimen for Parasites A random specimen of stool (at least 4 ml or 4 cm³) is collected in a clean, dry, container with a tightly fitting lid (a tin box, plastic box, glass jar, or waxed cardboard…

  • Pathology
  • Pathology Notes
  • Notes
  • Article
  • How to
  • Microscopic Examination of Feces
  • Examination of Feces
  • Diseases and Disorders
  • Laboratory
  • Laboratory Test Procedure
  • Laboratory Technique
Read 7679 times
Dayyal Dg.
Dayyal Dg. in Clinical Pathology
Tuesday, 29 August 2017 20:21

CHEMICAL EXAMINATION OF FECES

Chemical examination of feces is usually carried out for the following tests (Figure 845.1): Occult blood Excess fat excretion (malabsorption) Urobilinogen Reducing sugars Fecal osmotic gap Fecal pH Figure 845.1: Chemical examinations done on fecal sample Test for Occult Blood in Stools Presence of blood in feces which is not…

  • Pathology
  • Clinical Pathology
  • Pathology Notes
  • Notes
  • Article
  • How to
  • Laboratory
  • Laboratory Technique
  • Laboratory Test Procedure
  • Examination of Feces
  • Chemical Examination of Feces
  • Diseases and Disorders
Read 5861 times
Dayyal Dg.
Dayyal Dg. in Clinical Pathology
Sunday, 27 August 2017 20:46

LABORATORY TESTS TO EVALUATE TUBULAR FUNCTION

Tests to Assess Proximal Tubular Function Renal tubules efficiently reabsorb 99% of the glomerular filtrate to conserve the essential substances like glucose, amino acids, and water. 1. Glycosuria In renal glycosuria, glucose is excreted in urine, while blood glucose level is normal. This is because of a specific tubular lesion…

  • Laboratory Tests to Evaluate Tubular Function
  • Pathology
  • Pathology Notes
  • Notes
  • Article
  • How to
  • Renal Function Test
  • Laboratory
  • Laboratory Technique
  • Laboratory Test Procedure
  • Diseases and Disorders
Read 3388 times
Dayyal Dg.
Dayyal Dg. in Clinical Pathology
Sunday, 27 August 2017 08:15

MICROALBUMINURIA AND ALBUMINURIA

Normally, a very small amount of albumin is excreted in urine. The earliest evidence of glomerular damage in diabetes mellitus is occurrence of microalbuminuria (albuminuria in the range of 30 to 300 mg/24 hours). An albuminuria > 300-mg/24 hour is termed clinical or overt and indicates significant glomerular damage. (See…

  • Clinical Pathology
  • Pathology
  • Pathology Notes
  • Notes
  • Article
  • How to
  • Diseases and Disorders
  • Laboratory
  • Laboratory Test Procedure
  • Laboratory Technique
  • Renal Function Test
Read 1320 times
Dayyal Dg.
Dayyal Dg. in Clinical Pathology
Saturday, 26 August 2017 20:43

BIOCHEMICAL TESTS USED TO ASSESS RENAL FUNCTION

Two biochemical parameters are commonly used to assess renal function: blood urea nitrogen (BUN) and serum creatinine. Although convenient, they are insensitive markers of glomerular function.   Blood Urea Nitrogen (BUN)   Urea is produced in the liver from amino acids (ingested or tissue-derived). Amino acids are utilized to produce…

  • Pathology
  • Clinical Pathology
  • Pathology Notes
  • Notes
  • Article
  • How to
  • Diseases and Disorders
  • Laboratory
  • Laboratory Technique
  • Laboratory Test Procedure
  • Renal Function Test
  • Chemical Pathology
  • Methods for Estimation of Blood Urea Nitrogen
  • Methods for Estimation of Serum Creatinine
Read 3687 times
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