[Sk8ermom]

This is not really a math question, but it is from my drug dosage calculations class....

What is missing from these 2 drug orders?


Nexium 1 capsule po daily

Benadryl capsule po t.i.d.

Is it the dosage? Does Nexium come in more than one dosage? How about Benadryl?

[dalvnjjh]

sk8rmom, both drugs are missing the strength. Even if there is one strength you still need to have the dosage. Benadryl has different dosages, ie, 12.5mg, 25mg, 50mg and so forth. Strength also depends on what it is used for. Hope this helps.

[Daytonite]

Originally Posted by Sk8ermom

This is not really a math question, but it is from my drug dosage calculations class....

What is missing from these 2 drug orders?


Nexium 1 capsule po daily

Benadryl capsule po t.i.d.

Is it the dosage? Does Nexium come in more than one dosage? How about Benadryl?

Nexium comes in 20mg and 40mg capsules. The order does not stipulate the dosage of the capsule.

Benadryl comes in 25mg and 50mg capsules. The order does not stipulate the dosage of the capsule.

[notthereyet0]

Our nursing instuctor started giving us harder problems, not really for us to get right but to stretch us. I can't seem to get these.

1. The patient is prescribed ampicillin sulbactam (Unasyn) 3.5 Gm IVPB every 6 hours. The pharmacy has supplied bags labeled : Unasyn 3.5 Gm. In 50 ml infuse over 30 min. The IV pump is set in ml/hour. What should the rate be set on the pump?

2. A new submission has orders for Dextrose 5% in water with 30 miq KCL per L to infuse at 125 ml per hr. The pharmacy as supplied 1 L IV bags labeled : KCL 40 meq ? 20 ml . How many ml should be added to each IV bag?

Thank you!!

[beth66335]

Originally Posted by notthereyet0

Our nursing instuctor started giving us harder problems, not really for us to get right but to stretch us. I can't seem to get these.

1. The patient is prescribed ampicillin sulbactam (Unasyn) 3.5 Gm IVPB every 6 hours. The pharmacy has supplied bags labeled : Unasyn 3.5 Gm. In 50 ml infuse over 30 min. The IV pump is set in ml/hour. What should the rate be set on the pump?
50mL X 60min = 3000 = 100mL/hr
30min.....1hr..... 30

2. A new submission has orders for Dextrose 5% in water with 30 mEq KCL per L to infuse at 125 ml per hr. The pharmacy as supplied 1 L IV bags labeled : KCL 40 mEq / 20 ml . How many ml should be added to each IV bag?
40mEq : 20mL :: 30mEq : XmL
40X= 600
X= 15mL
I don't quite understand this one, so I am assuming this bag labeled: KCL 40 mEq/ 20mL is the bag you are drawing from to add to the 1 L bag of D5W?
Thank you!!

Here you go my answers are in red.

[beth66335]

Originally Posted by preeyancaWT

hey dont talk abt maths . only i know how i cleaared it

What??

[notthereyet0]

Thank you, Beth!!!

[Daytonite]

Originally Posted by notthereyet0

A new submission has orders for Dextrose 5% in water with 30 mEq KCL per L to infuse at 125 ml per hr. The pharmacy has supplied KCL 40 mEq per 20 ml. How many ml of the KCL 40 mEq should be added to each liter of Dextrose 5% in water?

Using this Formula:

Ordered/Have x Volume Per Have

also expressed as Dose Desired/Dose on Hand x Amount Per Dose on Hand, you get

30 mEq/40 mEq x 20 mL = 15 mL

[dking821]

Can someone please help me with the following math problem?
Maintenance calories for 160 lbs is 2000 calories. Pt will exercise 250 cal. How many calories must the pt decrease from her maintenance in order to lose one lb per week?..3500 calories equals to 1pound.

[Daytonite]

Originally Posted by dking821

Can someone please help me with the following math problem?
Maintenance calories for 160 lbs is 2000 calories. Pt will exercise 250 cal. How many calories must the pt decrease from her maintenance in order to lose one lb per week?..3500 calories equals to 1pound.

(2,000 calories/day x 7 days - 3500 calories)/7 days = 1,500 calories/day

or

Just divide the 3,500 calories by 7 days to get 500 calories which is how much she much decrease her calorie intake per day, so 2,000 calories - 500 calories = 1,500 calories.