Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

SBB > Lab Math > Flashcards

Lab Math Flashcards

1
Q

Calculation for Dilution

A

V1C1=V2C2 remember to subtract or add for the total volume when asking for quantity to dilute.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

1 inch = how many cm

A

2.54cm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

1 kg = how many lb

A

2.2 lb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

RHIG formula

A

% of fetal cells/ mother cells multiply by 5000mL= FMH quantity/30 (30uL is covered by any one Rhig vial) To this final number at 1 vial to be on the safe side

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Exchange transfusion (Mixing plasma and RBCs)

A

V1C1=V2C2 remember to subtract or add for the total volume when asking for quantity to dilute. Final volume is total final volume, not the diluent.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Antigen screening calculation

A

% Ag Neg/100=Units needed/X units to screen. Units needed/%antigen negative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Blood volume calculation

A

convert lbs to Kg. 1kg=75ml/Kg of blood this is the blood volume

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Plasma volume

A

Blood volume (hct%)=X, BV-X= plasma volume. BV(1-HCT)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Maximum blood bolume collected according to AABB

A

10.5mL/ Kg, don’t forget 50mL diversion pouch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Component yield

A

Total plt= (Plt/uL) (10^3uL/mL)(vol in unit). PC/WB=% of yield. With a WB unit you do the count of the WB unit and the count of the PC (platelet concentrate and then take a percentage)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Average yield of a platelet unit

A

69%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Half life of IgG

A

23-25 days

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Cryo dosing (Factor VIII)

A

(PV)(Factor VIII increment)/ 80IU per bag

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Factor VIII quantity in severe hemophilia

A

Assume 0%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

normal Factor 8 quantity in cryo bag

A

80IU/bag

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Corrected Count Increment

A

(New ct-Old ct) (BSA)/(Plt)(x10^11)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Average BSA if not given

A

2m^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

successful vs. unsuccesful platelet recovery (CCI)

A

> 7500 successful <7500 on two subsequent transfusions= refractory.

19
Q

Plasma exchange

A

the same as plasma volume really, just depends on how many times you want to exchange the patients plasma and multiply that but the final number. BV(1-hct) =PE

20
Q

Hardy Weinberg Equilibrium

A

p+q=1, p^2+2pq+q^2=1. q^2 = percentage of homozygous negative- use this as the initial portion of the calculation

21
Q

RR

A

HLA and disease correlation. Draw a graph is the first step and plug the numbers into the graph. (Positive/Positive#)x(Negative/Negative#)/ (Pos/Neg#)(Neg/Pos#)

22
Q

RCF

A

relative centrifugal force=(28.38 or 11.17)(r)(rpm/1000)^2

23
Q

Sensitivity

A

TP/(TP+FN)

24
Q

Specificity

A

TN/(TN+FP)

25
Q

RCF incheas value

A

28.38

26
Q

RCF cm value

A

11.17

27
Q

FTE formula

A

determine the acutal time worked per person (deduct vacation sick days etc). - factor in productivity (in a percentage) convert all units to min/yr. FTE= annual test workload (always provided)/annual workload (productivity and vacation info provided)

28
Q

Staffing budgeting compare cost

A

determine quantity of test (min/year)/ annual workload (minutes/year) this is the total FTE needed, compare the FTE and salary vs. the cost of the test/year to determine which saves more money

29
Q

Requirement for fibrinogen in cryo unit

A

> /=150

30
Q

half life of IgG

A

21-28 days

31
Q

Half life of IgM

A

5 days

32
Q

Half life of factor VII

A

5 hours

33
Q

Half life of factor VIII

A

8-12 HOURS

34
Q

Half life of Factor X

A

20 HOURS

35
Q

calulating yield of cryo

A

units of factor 8/mL x mL of final product divided by (units of factor 8/mL x mL of original FFP product) = percentage

36
Q

1 plasma volume exchange removes approximately how much of material?

A

65%

37
Q

calculating the allowed amount in donors under 110lb

A

450(normal amount of blood allowed)x donor weight lb .110lb= amount left

38
Q

amount of anticoagulant used

A

450mL +/- 10% =63 mL anticoagulant. 500mL +/- 10% = 70mL

39
Q

recalculate the amount of anticoagulant needed for donor unit when patient is less than 110 lb

A

63mL/110lb=amount needed (mL)/donor weight (lb)

40
Q

how much fibrinogen is in one bag of cryo

A

250 mg/ bag

41
Q

BV for IUT

A

0.14 mL/g

42
Q

IUT calculation

A

(fetus weight in grams) (0.14mL/g)(desired change in hematocrit) / hct of unit to transfuse

43
Q

quantity of one reagent drop used in blood testing

A

50uL

44
Q

formula for conversion celsius to farenheit

A

T in celsius= (Tin farenheit-32) x 5/9

SBB (31 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions