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math calculations with Byetta injection

Calculate the total quantity and the total days supply for the following Rx: Byetta 5 mcg sig: i inj sq bid ac #1 ------------------------------------------------------------ The doctor has prescribed Byetta 5 mcg pen (250mcg/mL 1.2mL), that is, the pharmacist will dispense one pen as stated by the doctor. The total quantity to be dispensed is either 1 pen or 1.2 mL depending on the pharmacy computer system. Byetta comes in a prefilled pen with premeasured doses. Each prefilled pen has 60 subcutaneous doses and there are 5 mcg per dose. The sig says: inject 5 mcg subcutaneously twice daily before meals But, the pharmacist may re-write the sig directions: inject 1 dose under the skin twice daily before meals The patient has to inject 1 dose twice daily, that is, 2 doses per day. So, the days supply will be 60 doses divided by 2 doses which is 30 days. It is worth noting that mcg means microgram. Here is another way of calculating the days supply: We know that the prefilled pen has 60 doses and there are 5mcg per dose. So, 1 dose = 5 mcg and, then, 60 doses = 300 mcg The patient has to inject 5 mcg twice daily, that is, 10 mcg per day. So, the total days supply will be 300 mcg divided by 10 mcg which is 30 days. It is worth noting that Byetta must be kept in the refrigerator prior to using.

What are the total quantity and the total days supply for the following Rx: Byetta 5 disp: 1 pen 1 dose bid ------------------------------------------------------------ The doctor has prescribed Byetta 5 mcg pen (250mcg/mL 1.2mL), that is, the pharmacist will dispense one pen as stated by the doctor. The total quantity to be dispensed is either 1 pen or 1.2 mL depending on the pharmacy computer system. Byetta comes in a prefilled pen with premeasured doses. Each prefilled pen has 60 subcutaneous doses and there are 5 mcg per dose. The sig says: inject 1 dose under the skin twice daily The patient has to inject 1 dose twice daily, that is, 2 doses per day. So, the days supply will be 60 doses divided by 2 doses which is 30 days. It is worth noting that Byetta must be kept in the refrigerator prior to using.

Calculate the total quantity and the total days supply for the following Rx: Byetta 10 mcg sig: 1 inj sc bid ac disp: 1 pen ------------------------------------------------------------ The doctor has prescribed Byetta 10mcg pen (250mcg/mL 2.4mL), that is, the pharmacist will dispense one pen as stated by the doctor. The total quantity to be dispensed is either 1 pen or 2.4 mL depending on the pharmacy computer system. Byetta comes in a prefilled pen with premeasured doses. Each prefilled pen has 60 subcutaneous doses and there are 10mcg per dose. The sig says: inject 10 mcg subcutaneously twice daily before meals But, the pharmacist may re-write the sig directions: inject 1 dose under the skin twice daily before meals The patient has to inject 1 dose twice daily, that is, 2 doses per day. So, the days supply will be 60 doses divided by 2 doses which is 30 days. Here is another way of calculating the days supply: We know that the prefilled pen has 60 doses and there are 10mcg per dose. So, 1 dose = 10 mcg and, then, 60 doses = 600 mcg The patient has to inject 10 mcg twice daily, that is, 20 mcg per day. So, the total days supply will be 600 mcg divided by 20 mcg which is 30 days.

Calculate the total quantity and the total days supply for the following Rx: Byetta 10 #1 pen sig: 10 mcg sq 30 min prior to meal bid ------------------------------------------------------------ The doctor has prescribed Byetta 10mcg pen (250mcg/mL 2.4mL), that is, the pharmacist will dispense one pen as stated by the doctor. The total quantity to be dispensed is either 1 pen or 2.4 mL depending on the pharmacy computer system. Byetta comes in a prefilled pen with premeasured doses. The prefilled pen has 60 subcutaneous doses and there are 10mcg per dose. The sig says: inject 10 mcg subcutaneously 30 minutes prior to meal twice daily But, the pharmacist may re-write the sig directions: inject 1 dose under the skin 30 minutes prior to meal twice daily The patient has to inject 1 dose twice daily, that is, 2 doses per day. So, the days supply will be 60 doses divided by 2 doses which is 30 days.

What are the total quantity and the total days supply for the following Rx: Byetta 10 mcg disp: byetta pen sc bid ac x 1 mo use as directed ------------------------------------------------------------ The doctor has prescribed Byetta 10mcg pen (250mcg/mL 2.4mL), that is, the pharmacist will dispense one pen as stated by the doctor. The total quantity to be dispensed is either 1 pen or 2.4 mL depending on the pharmacy computer system. The sig says: inject under the skin twice daily before meals as directed Byetta comes in a prefilled pen with premeasured doses. The pen is to be used twice daily and should last 30 days. So, the total days supply is 30 days. It is worth noting that Byetta must be kept in the refrigerator prior to using.

Calculate the total quantity and the total days supply for the following Rx: Byetta 10 mcg sq bid disp: 3 pens ------------------------------------------------------------ The doctor has prescribed Byetta 10mcg pen (250mcg/mL 2.4mL) Byetta comes in a prefilled pen with premeasured doses. Each prefilled pen has 60 subcutaneous doses and there are 10mcg per dose. Also, each prefilled pen has 2.4 mL of medicine. The doctor wants the pharmacist to dispense 3 pens. If 1 pen has 2.4 mL, then 3 pens have 7.2 mL So, the total quantity to be dispensed is either 3 pens or 7.2 mL depending on the pharmacy computer system. The sig says: inject 10 mcg subcutaneously twice daily The patient will inject the medicine twice daily. Notice that there are 10 mcg per dose. In this case, the patient will inject 2 doses per day. We know that each pen provides 60 doses. Then, 3 pens provide 180 doses. The total days supply will be 180 doses divided by 2 doses which is 90 days. On the other hand, the insurance company did not pay for 3 pens all at once. The insurance company told the patient to get 2 pens now and 1 pen later. In this case, the total quantity prescribed would be either 3 pens or 7.2 mL But, the total quantity dispensed would be either 2 pens or 4.8 mL and the total days supply would be 60 days. In fact, each pen is supposed to last 30 days.

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