31. A pharmacy technician receives a prescription for guaifenesin DM 1 tsp PO q.i.d. x 10 days. The technician prints a label that reads: Guaifenesin Take 10 mL by mouth two × a day for 10 days. What is the total number of errors this label contains?
Answer: B
There are 2 errors in the label.
The label contains two significant errors: the dosage and the frequency of administration. The prescription specifies taking guaifenesin DM 1 tsp (which is equivalent to 5 mL) four times a day (q.i.d.), while the label inaccurately states to take 10 mL two times a day.
A) 1
This option is incorrect because the label contains more than one error. Specifically, there are errors in both the dosage and the frequency, which cannot be accurately represented by just one error.
B) 2
This option is correct as there are indeed two errors present on the label. The first error is the incorrect dosage, as the label states 10 mL instead of the prescribed 5 mL (1 tsp). The second error is in the frequency, where the label states two times a day instead of the prescribed four times a day.
C) 3
This option is incorrect because there are only two identifiable errors in the label. The label does not contain additional errors beyond the dosage and frequency discrepancies, making this option an overestimation.
D) 4
This option is incorrect as it suggests that there are four errors in the label, which is not the case. Only two errors can be identified: the incorrect dosage and the incorrect frequency of administration.
Conclusion
In summary, the label incorrectly states the dosage as 10 mL instead of the correct 5 mL and lists the frequency as two times a day instead of four times a day. This confirms that the correct answer is B) 2, as all other options misrepresent the total number of errors present in the label.