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FREE LABORATORY SCIENCE AND STUDY GAMES ABOUT
CALCULATIONS EXAM QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -25 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation
Question 1: Indirect bilirubin (unconjugated)
Answer:
Total bilirubin - Direct bilirubin
Question 2: Globulin
Answer:
Total Protein - albumin
Question 3: 24 Hour Osmol
Answer:
Urine Osmo x (Total volume/1000)
Question 4: UIBC
Answer:
TIBC - Iron = UIBC
Question 5: Relative index (if total CK > 100)
Answer:
[(CK-MB)/CK] x100
Question 6: A/G Ratio
Answer:
Albumin / (total protein-albumin)
Question 7: TSAT (Transferrin saturation)
Answer:
[TSAT= (Fe/TIBC) x 100] or [TSAT=(Fe/TF) X 70.9]
Question 8: Manual hemocytometer counts
Answer:
- Take average cell count from the four sets of 16 squares
- Multiply that number by 10,000
- Multiply by 5 ( to correct from dilution)
Question 9: 24 Hour Urine Chloride
Answer:
Urine chloride x (total volume/1000)
Question 10: Beers Law
Answer:
A = ?lc A = absorbance , ?= constant, molar absorptivity, l= path length c= concentration
Question 11: VLDL
Answer:
Chol - HDL - LDL
Question 12: Estimated average glucose
Answer:
(28.7 x A1C) -46.7
Question 13: Mean cell volume (MCV)
Answer:
[hematocrit % x 10] / RBC
Question 14: Mean cell hemoglobin (MCH)
Answer:
[Hb x 10] / RBC
Question 15: 24 Urine Creatinine
Answer:
[Urine Creatinine x (total volume/100)] / wght (kg)
Question 16: TIBC
Answer:
UIBC + Serum Iron = TIBC
Question 17: Corrected WBC counts when > 10 nRBCs present
Answer:
observed WBC count x (100 ÷ [nRBC + 100])
Question 18: Mean cell hemoglobin concentration ( MCHC)
Answer:
[Hb x 100] / [Hematocrit %]
Question 19: BSA
Answer:
Square root ((Ht (cm) x Wt (kg))/3600)
Question 20: 24 Hour Urine Amylase
Answer:
Urine amylase x (total volume/1000)
Question 21: Creatine clearance calculation
Answer:
(urine creatinine/serum creatinine) x ( TV(mls)/collection time) x (1.73/BSA)
Question 22: Non-HDL
Answer:
Cholesterol-HDL = Non HDL
Question 23: LDL ( Friedewald)
Answer:
Cholesterol - HDL - (TG/5) = LDL
Question 24: Urine Malb/Creatnine ratio
Answer:
(Urine malb/urine Creatinine) x 100
Question 25: Anion Gap
Answer:
Na - (Co2 + Cl)
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