5 mL of sterile lidocaine 2% injection was removed from a 50 mL vial and replaced with 5 mL of 8.4% sodium bicarbonate injection to reduce pain on injection during epidural anesthesia. calculate the concentration of lidocaine, in mg/mL, in the admixture after the sodium bicarbonate was mixed in

Mrs B, aged 43 years, weight 56 kg, requires a loading dose of drug B.  The target plasma concentration is 18.9 mg/ L, volume of distribution is 0.5 L/ kg, the salt factor is 0.9 and bioavailability fraction is 1. What is the intravenous loading dose (LD) of Drug B in milligrams (mg)? units - mg LD = Cp desired x Vd                         S x F   Where Cp desired is the target plasma concentration; Vd is the volume of distribution; S is the salt factor and F is the bioavailability fraction

One litre of dextrose 5% / NaCl 0.45% is prescribed over 6 hours using a paediatric giving set that delivers 20 drops/ml. What is the rate of administration in drops per minute? (Give your number to the nearest whole drop).   Units  -drops/min

The erythrocyte sedimentation rate (heaviness) test of a blood sample is often used as a diagnosis of immune disorders and some other diseases. Assuming that the red blood cells are about a sphere with a diameter of (approximately 5 um) and a density (g/ml 1.125), and the density and viscosity of the plasma in which the red blood cells are settled (Pa.s), (1025 kg/m3 10-3 x 1.5) On arrangement and acceleration m/s2 9.81 Calculate the erythrocyte sedimentation rate (settlement rate).