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 Clinical Pathology
Friday, 22 September 2017 08:37

FEMALE INFERTILITY: CAUSES AND INVESTIGATIONS

The ovaries are the sites of production of female gametes or ova by the process of oogenesis. The ova are released by the process of ovulation in a cyclical manner at regular intervals. Ovary contains numerous follicles that contain ova in various stages of development. During each menstrual cycle, up…

  • Infertility
  • Infertility in Female
  • Female Infertility
  • Causes of Infertility in Female
  • Investigation for Infertility in Female
  • Pathology
  • Clinical Pathology
  • Pathology Notes
  • Notes
  • Article
  • Diseases and Disorders
  • Laboratory
  • Laboratory Technique
  • Laboratory Test Procedure
Read 3051 times
Dayyal Dg.
Dayyal Dg. in Clinical Pathology
Thursday, 21 September 2017 19:03

MALE INFERTILITY: CAUSES AND INVESTIGATIONS

The male reproductive system consists of testes (paired organs located in the scrotal sac that produce spermatozoa and secrete testosterone), a paired system of ducts comprising of epididymis, vasa deferentia, and ejaculatory ducts (collect, store, and conduct spermatozoa), paired seminal vesicles and a single prostate gland (produce nutritive and lubricating…

  • Infertility
  • Infertility in Male
  • Male Infertility
  • Causes of Infertility in Male
  • Investigation for Infertility in Male
  • Pathology
  • Clinical Pathology
  • Pathology Notes
  • Notes
  • Article
  • Diseases and Disorders
  • Laboratory
  • Laboratory Technique
  • Laboratory Test Procedure
Read 2646 times
Dayyal Dg.
Dayyal Dg. in Clinical Pathology
Thursday, 07 September 2017 20:21

NORMAL GASTRIC ANATOMY AND PHYSIOLOGY

Anatomically, stomach is divided into four parts: cardia, fundus, body, and pyloric part. Cardia is the upper part surrounding the entrance of the esophagus and is lined by the mucus-secreting epithelium. The epithelium of the fundus and the body of the stomach is composed of different cell types including: (i)…

  • Pathology
  • Clinical Pathology
  • Notes
  • Article
  • How to
  • Pathology Notes
  • Anatomy
  • Physiology
  • Gastric Anatomy
  • Gastric Physiology
Read 4018 times
Dayyal Dg.
Dayyal Dg. in Clinical Pathology
Thursday, 07 September 2017 18:53

CONTRAINDICATIONS TO GASTRIC ANALYSIS

Gastric intubation for gastric analysis is contraindicated in esophageal stricture or varices, active nasopharyngeal disease, diverticula, malignancy, recent history of severe gastric hemorrhage, hypertension, aortic aneurysm, cardiac arrhythmias, congestive cardiac failure, or non-cooperative patient. Pyloric stenosis: Obstruction of gastric outlet can elevate gastric acid output due to raised gastrin (following…

  • Pathology
  • Clinical Pathology
  • Pathology Notes
  • Notes
  • Article
  • How to
  • Laboratory
  • Laboratory Technique
  • Laboratory Test Procedure
  • Contraindications to Gastric Analysis
  • Diseases and Disorders
Read 3513 times
Dayyal Dg.
Dayyal Dg. in Clinical Pathology
Thursday, 07 September 2017 18:53

LABORATORY TESTS FOR GASTRIC ANALYSIS

Hollander’s test (Insulin hypoglycemia test): In the past, this test was used for confirmation of completeness of vagotomy (done for duodenal ulcer). Hypoglycemia is a potent stimulus for gastric acid secretion and is mediated by vagus nerve. This response is abolished by vagotomy. In this test, after determining BAO, insulin…

  • Pathology
  • Clinical Pathology
  • Pathology Notes
  • Notes
  • Article
  • How to
  • Laboratory
  • Laboratory Technique
  • Laboratory Test Procedure
  • Laboratory Tests for Gastric Analysis
  • Diseases and Disorders
Read 3797 times
Dayyal Dg.
Dayyal Dg. in Clinical Pathology
Thursday, 07 September 2017 18:18

INDICATIONS FOR GASTRIC ANALYSIS

In gastric analysis, amount of acid secreted by the stomach is determined on aspirated gastric juice sample. Gastric acid output is estimated before and after stimulation of parietal cells (i.e. basal and peak acid output). This test was introduced in the past mainly for the evaluation of peptic ulcer disease…

  • Pathology
  • Clinical Pathology
  • Pathology Notes
  • Notes
  • Article
  • How to
  • Laboratory
  • Laboratory Technique
  • Laboratory Test Procedure
  • Diseases and Disorders
  • Indications for Gastric Analysis
  • Recurrent Peptic Ulcer Disease
  • Zollinger Ellison Syndrome
  • Pernicious Anemia
  • Malignant Ulcer
  • Peptic Ulcer Dyspepsia
Read 3799 times
Dayyal Dg.
Dayyal Dg. in Clinical Pathology
Tuesday, 05 September 2017 18:51

METHOD OF GASTRIC ANALYSIS

To assess gastric acid secretion, acid output from the stomach is measured in a fasting state and after injection of a drug which stimulates gastric acid secretion. Basal acid output (BAO) is the amount of hydrochloric acid (HCl) secreted in the absence of any external stimuli (visual, olfactory, or auditory). Maximum acid…

  • Pathology
  • Clinical Pathology
  • Pathology Notes
  • Notes
  • Article
  • How to
  • Method of Gastric Analysis
  • Gastric Analysis Method
  • Laboratory
  • Laboratory Technique
  • Laboratory Test Procedure
  • Diseases and Disorders
  • Method for Combined Gastrointestional Feeding and Aspiration
  • Gastric Aspiration
  • Gastric Problems
  • Gastric Ulcer
Read 9380 times
Dayyal Dg.
Dayyal Dg. in Bioethics
Monday, 04 September 2017 13:27

Bioethics

Bioethics is the study of the ethical issues emerging from advances in biology and medicine. It is also moral discernment as it relates to medical policy and practice. Bioethicists are concerned with the ethical questions that arise in the relationships among life sciences, biotechnology, medicine, politics, law, and philosophy. It includes the study of values ("the ethics of the ordinary") relating to…

  • Bioethics
  • Article
  • Definition of Bioethics
Read 1032 times
Dayyal Dg.
Dayyal Dg. in Animal Biotechnology
Monday, 04 September 2017 13:17

Animal Biotechnology

Animal biotechnology is a branch of biotechnology in which molecular biology techniques are used to genetically engineer (i.e. modify the genome of) animals in order to improve their suitability for pharmaceutical, agricultural or industrial applications. Animal biotechnology has been used to produce genetically modified animals that synthesize therapeutic proteins, have…

  • Animal Biotechnology
  • Article
  • Definition of Animal Biotechnology
Read 1565 times
Dayyal Dg.
Dayyal Dg. in Biophysics
Monday, 04 September 2017 13:09

Biophysics

Biophysics or biological physics is an interdisciplinary science that applies the approaches and methods of physics to study biological systems. Biophysics covers all scales of biological organization, from molecular to organismic and populations. Biophysical research shares significant overlap with biochemistry, physical chemistry, nanotechnology, bioengineering, computational biology, biomechanics and systems biology.   The term biophysics was originally introduced by Karl Pearson in 1892.

  • Biophysics
  • Definition of Biophysics
  • Article
Read 1372 times
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