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Clinical Chemistry > Metric System and Lab Calculations > Flashcards

Metric System and Lab Calculations Flashcards

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1
Q

What are the 3 basic units of the metric system?

A

Grams, Liters and Meters

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2
Q

10^3 uses which prefix?

A

Kilo

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3
Q

10^2 uses which prefix?

A

Hecto

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4
Q

10^1 uses which prefix?

A

Deca

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5
Q

10^-2 uses which prefix?

A

Centi

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6
Q

10^-6 uses which prefix?

A

Micro

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7
Q

10^-3 uses which prefix?

A

Milli

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8
Q

How many micrograms are in 1 gram?

A

1,000,000

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9
Q

How many milligrams are in 1 gram?

A

1,000

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10
Q

How many micrograms are in 1 milligram?

A

1,000

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11
Q

What is the diluent?

A

fluid used to dilute the sample

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12
Q

What does the total consist of when calculating ratios?

A

Sample and diluent combined

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13
Q

If something is already diluted and you need to see the original dilution, what do you do?

A

Multiply by the diluent number, which is the number on the right in the ratio

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14
Q

If something needs to be diluted, what do you do?

A

Divide the original amount with the diluent number, which is the number on the right in the ratio

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15
Q

How do you convert Celsius to Fahrenheit?

A

Multiply Celsius by 1.8 and then add 32

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16
Q

How do you convert Fahrenheit to Celsius?

A

Subtract Fahrenheit by 32 and divide by 1.8

17
Q

How do you convert to exponential form?

A

Move the decimal point to the first number between 1 and 9. Then write the 10, to the power of (?), which is how many times you moved the decimal.

18
Q

What is pH defined as? Give an example.

A

The negative logarithm of the hydrogen ion.

Example: Ph of 7 = H+ concentration of 10^-7

19
Q

What is the normal pH of blood?

A

7.4

20
Q

What is neutral Ph?

A

7

21
Q

How is MCV calcuated?

A

PCV/tRBC*10=fL

22
Q

How is MCH calculated?

A

Hgb/tRBC*10=pg

23
Q

How is MCHC calculated?

A

Hgb / PCV*100=g/dL

Clinical Chemistry (7 decks)

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