أسئلة كيمياء حيويه هامه (2) لإمتحان الهيئة السعودية  للتخصصات الصحية والبورد الأمريكي والبريطاني Choose the most appropriate single answer. 1.       A patient has polyuria and polydipsia with a urine specific gravity of >1.040. Of the following possibilities, what is the most likely diagnosis? a.     Alcohol intoxication b.      ADH suppression from barbiturates c.     Diabetes mellitus d.     Li toxicity causing nephrogenic diabetes insipidus e.   Central ADH deficiency Answer (c) Polyuria is a condition defined as excessive or abnormally large production or passage of urine (greater than 2.5or 3L over 24 hours in adults). Polydipsia is excessive thirst or excess drinking. Diabetes is characterized by excessive thirst and water intake. Diabetes insipidus produces a dilute urine while mellitus produces a concentrated urine (high specific gravity). Glucosuria, as it occurs in diabetes, will also increase the specific gravity.

الأخصائيين  كيمياء حيوية  مراجع الامتحان   1. Textbook of Clinical Chemistry and Molecular Diagnostics, Tietz , Latest Edition. 2.   Biochemistry and Metabolism (Core Science and Clinical Cases in One Book), Andrew Davison, Anna Milan, Suzannah Phillips, Lakshminarayan Ranganath, Latest Edition. 3.    Clinical Biochemistry: An Illustrated  Colour  Text, Allan Gaw, Latest Edition. 4.    Lecture Notes: Clinical Biochemistry, Geoffrey Beckett, Latest Edition.

الأخصائيين تقنية مختبرات  (3) مع ( Answer key with explanations) General Lab. Choose the most appropriate single answer. 1. The primary mechanism responsible for glomerular filtration is: a.       Osmotic gradient b.       Concentration of blood components c.       Rate of blood flow through the kidneys d.       Hydrostatic differential in glomerular tufts  Answer d The hydrostatic pressure in the capillaries of the glomerular tuft drives the filtrate across their semipermeable membrane. The normal glomerular filtrate is similar in composition to the plasma, with the exception that molecules with a molecular weight of greater than about 15,000 are not filtered.

الأخصائيين تقنية مختبرات  (2) General Lab. Choose the most appropriate single answer. 1. If a laboratory 's control range (using a 99.7 confidence interval) for a given assay is 20.0 to 50.0, what would its means and one standard deviation be: a.       Mean = 35.0 SD = 15.0 b.       Mean = 35.0 SD = 10.0 c.       Mean = 40.0 SD = 7.5 d.       Mean = 35.0 SD = 5.0

الأخصائيين تقنية مختبرات مراجع الامتحان 1.       Laboratory Practice in Tropical Countries, Monica Cheesbrough (latest Edition) 2.       Manual on Standard Operation Procedures, Sample Collection and Reference Ranges for Clinical Chemistry, Meliyanthi M. Gunatillaka (latest Edition) 3.       Clinical Immunology and Serology, Christine Dorresteyn Stevens (latest Edition) 4.       Molecular Cell Biology, Harvey Lodish (latest Edition)

الأخصائيين الأحياء الدقيقة    (الميكروبيولوجي)  (8) Match each of the following concepts with its appropriate answer 1.     Following are the test organisms used for the I.P microbiological assay of

الأخصائيين الأحياء الدقيقة    (الميكروبيولوجي)  (7) 1.      Negative Mantoux test is important in a.      Pulmonary Koch’s syndrome b.      Sarcoidosis c.       Carcinoma bronchus d.      Lymphoma