RBC Counts + Indices
  • RBC Count Estimate: PCV/6 (answer * 10⁶/mcl)
  • HGB Concentration: PCV/3
  • MCV: PCV/RBC * 10 (fl)
  • MCH: HGB/RBC * 10 (pg)
  • MCHC: HGB/PCV * 100 (g/dl)
  • Platelet Count: Average of 10 fields * 15,000
White Blood Cells
  • WBC Count: Average # of WBCs in 10 fields * 2500
  • Differential/Relative Count: Different morphology out of 100 WBC, % of each type of WBC present in the blood
  • Corrected WBC Count: Automated WBC Count * [100 / (nRBC + 100)]
  • Absolute Count: Relative Values / 100 * manual WBC count
Centrifugation Rates
  • Fecal: 1300 rpm
  • Urine: 1600 rpm
  • Blood: 3000 rpm
Nutrition
  • RER: (30 x weight in kg) + 70 = kcal/24 hours
  • MER: RER x Activity level = kcal/24 hours
  • Canine IER: MER x 1.25-1.5 = kcal/24 hours
  • Feline IER: MER x 1.1-1.25 = kcal/24 hours
Conversions
  • C1V1=C2V2
  • Unit 1 x (Unit 2/Unit)
    • ​Example: 1 g x (1000 mg/1 g)
Unit Conversions
  • 1 lb. = 2.2 kg
Drip Rate Formulas
  • Rehydration (R): % dehydrated * pt weight in kg * 1000 (mL/24 hours)
  • Maintenance (M) (Adult): 50mL/kg (mL / 24 hours)
  • Maintenance (M) (Young): 110mL/kg (mL / 24 hours)
  • Ongoing Fluid Loss (OFL): 1mL/lb/episode
  • Total Fluids Needed: R + M + OFL= TFN
  • Drip Rate: (volume * calibration) / time