VET-131: Ch 4 & 5 Quiz

How do you convert from lbs to kg?

Divide by 2.2

How do you convert from kg to lbs?

Multiply by 2.2

What is the most commonly used math system in vetmed?

Metric

Convert 0.003m to mm

3mm

Covert 2mL to L

0.002 L

10^-3

Milli

What is the abbreviation of the international system of units?

SI

Convert 37^C to ^F

98.6^F

>

Greater than

<

Less than

What pH is neutral?

7

What pH is alkaline (basic)?

>7

What pH is acidic?

<7

What is accuracy?

How closely results agree with the true quantitative value (how close a test result is to the actual patient value)

What is reliability?

The ability of a testing method to be accurate & precise

What is precision?

The magnitude of random errors & reproducibility of measurements

What is the most difficult factor to control that can affect results of a lab test?

Human error

What is a control?

A biological solution of known values that is used for the verification of the accuracy & precision of test results

Give an example of a preanalytical error

Patient not fasted (causing lipemia)

Give an example of an analytical error

Improperly maintained analyzer

Give an example of a postanalytical error

Improper data entry; inaccurate record keeping

What type of manual should be maintained & should contain instruction for all analyses run in the lab?

SOP manual

What should be kept & used in a lab for backup even if it is “old school”?

Logbook of test runs

What is the analysis of control materials used for?

To ensure the procedure was performed correctly & that all components/equipment are functioning correctly

What is quality assurance?

The procedures established to ensure that clinical testing is performed in compliance with accepted standards & that the processes and results are properly documented

What are the principles of quality assurance?

Accuracy, Precision, & Reliability

What are some factors that affect test results?

Sample collection techniques, electrical surges/outages, human error, maintenance & calibration of equipment

Controls should be performed on what type of constituents?

Both normal & abnormal

What is a standard?

Nonbiological solution of an analyte, usually in distilled water, with a known concentration

How to convert ^C to ^F?

F = 32+ (9/5 * C)

How to convert ^F to ^C?

C = 5/9 * (F-32)

What are the 3 basic units of the metric system?

Weight (grams), Volume (liters), Length (meters)

10^-2

Centi

10^-6

Micro

10^1

Deca

10^3

Kilo

What is used to handle very large numbers?

Scientific Notation (X * 10^N)

0^C = what in F?

32^F

20 mg/dL diluted to 1:5

4 mg/dL

20 mg/dL diluted to 1:10

2 mg/dL

20 mg/dL diluted 1:20

1 mg/dL

SI units

Mass (kilogram), temperature (kelvin), quantity (moles)

Biologic variables

Inherent to the patient, such as breed, age, gender; collection error

Nonbiologic variables

Clerical errors (incorrect labeling, etc.), sample collection & handling

All samples must be labeled with

Patient’s name, species, ID number (if available), & date