Answer:
Therefore, the flow rate in drops (drips) per minute necessary for a 60 kg patient is approximately 32 drops minute.
Explanation:
If 20 mg of sodium chloride is required per hour per kg of body weight, the amount of sodium chloride required per minute per body weight will be calculated as follows:
20 mg/hour/kg * (1 hour/ 60 min) = 1/3 mg/min/kg
For a 60 kg patient, amount of sodium chloride required per minute = 1/3 mg/min/kg * 60 kg = 20 mg/min
Concentration of solution = 6.2 g of sodium chloride per litre
0.10 mL = 0.10 mL * 1 L/1000 mL = 0.0001 L
In 0.10 mL, mass of sodium chloride = 6.2 g/L * 0.0001 L = 0.0062 g = 0.62 mg
If a drop delivers 0.62 mg of sodium chloride, number of drops required to deliver 20 mg of sodium chloride = 20/0.62 = 32.3 drops
Therefore, the flow rate in drops (drips) per minute necessary for a 60 kg patient is approximately 32 drops minute.
