Week 1 - Lab Techniques Flashcards

1
Q

Name 6+ characteristics of a lab space in a veterinary clinic.

A
  • Should be separate from rest of hospital
  • Well lit and roomy
  • Plenty of electrical outlets
  • Sensitive equipment away from centrifuge or water
  • Drawers/cabinets
  • Surge Protectors
  • Fridge and freezer

These characteristics ensure a functional and safe laboratory environment.

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2
Q

What are the 3 types of lenses on a microscope?

A
  • Condenser lens: focuses light through object, provides no magnification
  • Objective lens: enlarges image, amount depends on lens
  • Ocular lens: located in eyepieces, usually 10x

Each lens serves a unique function in the magnification process.

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3
Q

What is the typical magnification power of a scanning objective?

A

4x

This is the lowest magnification used for initial examination.

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4
Q

What is the typical magnification power of a low power objective?

A

10x

Used for viewing larger specimens.

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5
Q

What is the typical magnification power of a high objective?

A

40x

Known as Hi or Hi-Dri objective.

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6
Q

What is the typical magnification power of an oil immersion objective?

A

100x

This objective requires the use of immersion oil for enhanced clarity.

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7
Q

What is the typical magnification power of oculars?

A

10x

The ocular lens is what the viewer looks through.

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8
Q

What are Kim-Wipes used for?

A

General cleaning/wiping (refractometer, slides)

They are designed for delicate cleaning tasks.

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9
Q

What is the purpose of Bibulous Paper?

A

Absorbs liquid on slides

Useful for drying slides without scratching.

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10
Q

What is Lens Paper used for?

A

Wipe oil off lenses

It is specifically designed to avoid scratching optics.

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11
Q

Describe the angled centrifuge.

A

Usually designed to hold one type of tube

This design is often used for specific applications.

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12
Q

Describe a triac centrifuge?

A

Has removable tube holders, variable speeds, and a timer

It is versatile for different sample types.

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13
Q

What does MHCT stand for?

A

Microhematocrit Tubes

These tubes are essential for measuring hematocrit levels.

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14
Q

What two values will we measure with a refractometer in class?

A
  • Urine Specific Gravity (U.S.G)
  • Blood – tp (total protein), sp (specific protein), or tsp (total specific protein)

These measurements are crucial for assessing hydration and protein levels.

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15
Q

What are the two classes of pipettes mentioned?

A
  • Transfer
  • Automatic

Each type has its specific applications in laboratory work.

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16
Q

Which type of pipette is the least precise?

A

Transfer

Transfer pipettes are generally used for less critical measurements.

17
Q

What results will a hematology analyzer give you?

A
  • CBC

A Complete Blood Count is a standard test for assessing overall health.

18
Q

What type of sample is needed for a hematology analyzer?

A

EDTA blood

EDTA acts as an anticoagulant to prevent clotting.

19
Q

What species do hematology analyzers generally work on?

A
  • Dog
  • Cat
  • Horse

These are the primary species for which these machines are designed.

20
Q

What are some results a blood chemistry analyzer give you?

A
  • BUN
  • Creat
  • Glucose
  • T4
  • Lytes

These results are critical for assessing organ function and metabolic status.

21
Q

What type of sample is needed for a blood chemistry analyzer?

A

Plasma or serum

The choice between plasma and serum depends on the specific tests being conducted.

22
Q

What species do blood chemistry analyzers generally work on?

A
  • Dog
  • Cat
  • Horse

Similar to hematology analyzers, these machines are tailored for these common pets.

23
Q

What results will an electrolyte analyzer give you?

A
  • Na+
  • K+
  • Cl-

These electrolytes are essential for various physiological functions.

24
Q

What type of sample is needed for an electrolyte analyzer?

A

Plasma or whole blood in lithium heparin separator

Lithium heparin prevents coagulation during analysis.

25
Q

What species do electrolyte analyzers generally work on?

A
  • Dogs
  • Cats
  • Horses

These analyzers are primarily focused on these companion animals.

26
Q

Name 3 or more types of lab equipment.

A
  • Water bath - Usually at 37°C
  • Slide drier - Can save time if doing a lot of slides
  • Aliquot mixer - Keeps blood agitated

Each piece of equipment serves a specific function to enhance laboratory efficiency.