CARE AND MAINTENANCE OF MICROSCOPE

Written by Monday, 31 July 2017 18:06
Routine care and proper maintenance of microscope will ensure good performance over the years. In addition to this, a properly maintained and clean microscope will always be ready for use…

PARTS AND FUNCTIONS OF A COMPOUND MICROSCOPE

Written by Tuesday, 25 July 2017 15:42
The microscope is the most important piece of equipment in the clinic laboratory. The microscope is used to review fecal, urine, blood, and cytology samples on a daily basis (see…

KOHLER ILLUMINATION

Written by Tuesday, 25 July 2017 13:43
What is Kohler illumination? Kohler illumination is a method of adjusting a microscope in order to provide optimal illumination by focusing the light on the specimen. When a microscope is…
One family of superbugs, known as carbapenem-resistant Enterobacteriaceae or CRE, may be spreading more widely than previously thought, according to a study published Monday in the journal Proceedings of the…

SALT TOLERANCE TEST

Written by Wednesday, 05 April 2017 15:10
Objective: To test organism's ability to tolerate various osmotic concentrations. Test Procedure1. Use a sterile loop or needle to inoculate broth tubes with different salt concentrations.2. Incubate at the optimum…

PENICILLIN DISC TEST

Written by Wednesday, 05 April 2017 14:45
Objective: To test the organism's susceptibility to antibiotic penicillin. Test Procedure and Interpretation: See the Optochin Disc Test. Discovery of Penicillin The discovery of penicillin's antibiotic powers is attributed to…

OXYGEN REQUIREMENT TEST (Thioglycollate Test)

Written by Wednesday, 05 April 2017 14:19
Objective: To determine the organism's oxygen requirement. Test Procedure1. Inoculate 5 ml of BHI broth with your unknown organism and incubate overnight. We have found that broth cultures provide much…

OXIDASE TEST

Written by Wednesday, 05 April 2017 14:00
Objective: To determine the presence of the oxidase enzymes (e.g. cytochrome c oxidase). Test Procedure and Interpretation1. Grow the culture on a BHI plate for 48 hours. Up to 7…

OPTOCHIN DISC TEST

Written by Wednesday, 05 April 2017 13:36
Objective: To test an organism's susceptibility to the chemical, optochin. Optochin susceptibility tests the fragility of the bacterial cell membrane. This test is mainly used to differentiate between Streptococcus pneumoniae…

NOVOBIOCIN DISC TEST

Written by Wednesday, 05 April 2017 13:23
Objective: To test an organism's susceptibility to the antibiotic novobiocin. Test Procedure1. Streak a BHI plate using a sterile cotton swab. Turn the plate 90 degrees and restreak with the…
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