Microscope Quiz 1

Question 1

What is the ft/minute fume hood have to set at minimally?

Answer 1

100 ft/minute

The minimum airflow for fume hoods is crucial for safety in laboratory environments.

Question 2

How often does the fume hood have to be checked?

Answer 2

Once a year

Regular checks ensure the fume hood is functioning properly to protect users from hazardous fumes.

Question 3

What is the stain used for slides?

Answer 3

Levowitz Weber modification of the Newman lampert stain Canadian

The correct amount of stain is important for proper visualization of specimens.

Question 4

What is the measurement of the slides have to be?

Answer 4

11.28 mm delineated

Accurate slide measurements are important for consistent results in microscopy.

Question 5

Does the pipettor have to have a serial # and date calibrated on it?

Answer 5

Yes

Calibration and serial numbers are essential for traceability and ensuring accuracy in measurements.

Question 6

How often is the pipettor calibrated?

Answer 6

6 months

Regular calibration maintains the accuracy and reliability of pipetting equipment.

Question 7

What is the temperature of the dryer box?

Answer 7

40-45°C

Maintaining the correct temperature is vital for the drying process in slide preparation.

Question 8

What is the name of the instrument that you swirl the milk on the slide with?

Answer 8

Dissecting needle

Dissecting needles are commonly used in microscopy to manipulate samples on slides.

Question 9

How much milk do you draw up to put on slide

Answer 9

0.01 mL

Question 10

What is mastitis characterized by?

Answer 10

Long chains of bacteria

Mastitis bacteria appear in long chains, while diplococci are seen in pairs.

Question 11

What is the cut off limit of bacteria count for GLC?

Answer 11

300k

The options for the cut off limit include 200k, 300k, 150k, and 250k.

Question 12

What is a somatic cell?

Answer 12

Large circular cell with nucleus that stains dark blue

Somatic cells are typically identified by their size and staining characteristics.

Question 13

What does the abbreviation DMSCC stand for?

Answer 13

Direct Microscopic Somatic Cell Count

This term is used in assessing somatic cell levels in milk.

Question 14

How long should the slide sit in the stain?

Answer 14

2 minutes

The options for staining duration include 1, 2, 3, and 4 minutes.

Question 15

What should you do after shaking the milk sample for testing?

Answer 15

Allow to stand until foam disperses and use within 3 minutes

This step is crucial to ensure accurate sampling and testing.