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Math Questions with Complete Solutions, Exams of Labour Law
A list of math questions and their complete solutions. The questions cover topics such as unit conversion, quadratic formula, molarity equation, dilution equation, blood volume equation, and Hardy-Weinberg equation. The solutions are marked with three checkmarks to indicate their correctness.
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SBB Lab Math QUESTIONS WITH COMPLETE
SOLUTIONS
- How many centimeters are in an inch? - ✅✅✅2.
- How many pounds are in a kilogram? - ✅✅✅2.
- What is conversion for an X% solution? - ✅✅✅X Grams of solute/ 100 mL of solvent
- What is the quadratic formula? - ✅✅✅x=(-b±√(b^2-4ac))/2a
- Molarity equation - ✅✅✅Moles of solute/liters of solution = M
- convert grams to moles - ✅✅✅grams/molar mass
- dilution equation - ✅✅✅C1V1=C2V
- Average adult Male total blood volume? - ✅✅✅66mL/kg
- Average adult Female total blood volume? - ✅✅✅60mL/kg
- Total Blood Volume Equation - ✅✅✅Total blood volume (mL) = weight (kg) x blood volume (mL/kg)
- Plasma Volume Equation - ✅✅✅Plasma Volume (mL) = total blood volume (mL) x (1 - hct)
- Hardy-Weinberg Equation - ✅✅✅p^2 + 2pq + q^2 = 1, where p is the dominant allele frequency & q is the recessive allele frequency. Of note, p + q = 1
- HardyWeinberg Equation for 3 alleles - ✅✅✅p^2 + 2pq
- q^2 + 2qr + r^2 + 2pr = 1 AND p + q + r = 1
- How to calculate percentage of random units compatible for a patient with multiple antibodies. - ✅✅✅Multiply the negative frequencies in the white population for each antigen.
- How many units to test to find antigen negative units?
- ✅✅✅X units to screen = # of units needed/ probability of finding negative units Note: then round up
- Cryo Yield Equation - ✅✅✅(Units of Factor VIII/mL)(mL of final product) ✅ (Units of Factor VIII/mL)(mL of original FFP) NOTE TO SELF: take a pic when you buy the app.
- 1 unit of RBCs increases hemoglobin by approximately
- ✅✅✅1 g/dL
- 1 unit of RBCs increases hematocrit by approximately:
- ✅✅✅3%
- Equation to calculate amount of blood to draw from an underweight donor: - ✅✅✅450mL/110lbs = allowable amount mL/donor weight lbs
- Calculate FTE - ✅✅✅52 weeks - benefit weeks = weeks worked
- (Weeks worked)( 40 hrs/week)(60 min/hr)(.75) = productivity in min/week
- FTE= Annual work load ✅ (Productivity min/week)
- How many paid hours in a year? - ✅✅✅40hrs a week x 52 weeks a year = 2080
- For FTE questions if they don't give you productivity, you should assume _________? - ✅✅✅75%
- How many paid hours in a year? - ✅✅✅52 weeks x 40 hrs = 2080
- Keeping in mind this includes PTO