75. How many days would a bottle of Humulin N 10 mL last a patient using 28 units in the morning and 8 units in the evening?
Answer: C
A bottle of Humulin N 10 mL would last 27 days.
To determine how long a bottle of Humulin N would last, we need to calculate the total daily usage of insulin. The patient uses 28 units in the morning and 8 units in the evening, totaling 36 units per day. Given that a 10 mL bottle contains 1000 units of insulin, dividing 1000 units by 36 units per day reveals that the bottle would last approximately 27.78 days, which rounds down to 27 days.
A) 3
This option is incorrect because 3 days of usage would suggest a total consumption of 108 units, which far exceeds the 1000 units available in a 10 mL bottle. Therefore, this option is not feasible based on the patient's daily insulin requirement.
B) 10
Choosing 10 days would imply a total consumption of 360 units, which is still less than the available 1000 units in the bottle but far too low for the daily usage of 36 units. This calculation does not align with the patient's regimen and is therefore an incorrect choice.
C) 27
This option is correct as it accurately reflects the calculations based on the patient's daily insulin usage. With a total of 36 units used each day, the 1000 units in the bottle would last approximately 27 days, making this the most accurate answer.
D) 30
Selecting 30 days would suggest a total consumption of 1080 units, which exceeds the total of 1000 units in the bottle. Given the daily usage of 36 units, this duration is not sustainable and is therefore incorrect.
Conclusion
The correct answer is 27 days, as it accurately represents the calculations based on the patient's daily insulin use of 36 units. All other options fail to align with the practical calculations of insulin consumption, making them invalid choices in this context.