Syringe Conversion Help?

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beclt

beclt

Member Since 2011
Hi There,

We are going to change syringes and need some help figuring out the ProZinc doseage. I'll post in that board too.

Right now we give 1.5 units with a 3/10cc, 1/2" length, 29 gauage needle (U-40)


What would this be with 3/10 cc, 5/16" 31 gauge needle (U-100)?

Thanks in advance!
Becky
 
Hi Becky!
There is a chart you can use to convert from u40 to u100. Here's a link:
http://www.felinediabetes.com/insulin-conversions-printer.htm
Specifcally, if you are wanting to shoot 1.5 u40 with a u100 syringe, you would draw up insulin to the 3.75 on a u100 syringe. Unfortunately, the syringes are only broken down by half unit markings, so you would try from right between the 3.5 and 4.0 lines.
The formula is the u40 dose x 2.5, so for instance if the dose was 1u of insulin, you'd go up to the 2.5 mark on the u100.

Make sense?

Carl

AS ALWAYS, I WILL ASK SOMEONE ELSE TO VERIFY MY MATH PLEASE?
 
Yes! I forgot to mention we are going to adjust to 2.0 units, so that looks like it would equal 5 on the U-100 syringe. Easier math :)

BTW--I met Jennifer today and she was unbelievably helpful and so kind. Cali, of course, was not friendly, but we are hoping with some of her tips (like a better needle) we can make Cali a little happier for when Jennifer comes at Christmas. Thank you so much Carl--you've been great! :)
 
carlinsc said:
Hi Becky!
There is a chart you can use to convert from u40 to u100. Here's a link:
http://www.felinediabetes.com/insulin-conversions-printer.htm
Specifcally, if you are wanting to shoot 1.5 u40 with a u100 syringe, you would draw up insulin to the 3.75 on a u100 syringe. Unfortunately, the syringes are only broken down by half unit markings, so you would try from right between the 3.5 and 4.0 lines.
The formula is the u40 dose x 2.5, so for instance if the dose was 1u of insulin, you'd go up to the 2.5 mark on the u100.

Make sense?

Carl

AS ALWAYS, I WILL ASK SOMEONE ELSE TO VERIFY MY MATH PLEASE?
Click to expand...

Which is why dose increments for U-40 insulin in U-100 syringes are usually measured
in 2/10ths of a unit rather than in 1/4 and 1/5 units.

1.0 units of U-40 insulin in a U-100 syringe is the 2.5 unit-MARK on the U-100 syringe
1.2 units of U-40 insulin in a U-100 syringe is the 3.0 unit-MARK on the U-100 syringe
1.4 units of U-40 insulin in a U-100 syringe is the 3.5 unit-MARK on the U-100 syringe
1.6 units of U-40 insulin in a U-100 syringe is the 4.0 unit-MARK on the U-100 syringe
1.8 units of U-40 insulin in a U-100 syringe is the 4.5 unit-MARK on the U-100 syringe
2.0 units of U-40 insulin in a U-100 syringe is the 5.0 unit-MARK on the U-100 syringe

Yes, just take the number of units of (U-40) insulin you want to dose, and multiply by
2.5 to get the MARK on the U-100 syringe.

By the way, Becky, always state your dose as the TRUE DOSE of U-40, not the MARK on
the U-100 syringe. We (and any vet you might see), needs that information to be accurate.
 
thanks for checking my math, Karen.
Becky,
another good idea is to add something to your signature to make everyone aware....like "U40 Prozinc using U100 syringe". When we see that, we'll know.

Carl
 
The difference between a U-100 and a U-4o insulin is the number of units in 1 milliliter.

U-100 insulin has 100 units per mL
U-40 insulin has 40 units per mL

When using the U-100 syringe, you can multiply any mark on it by 0.4 to get what the resulting U-40 insulin dose would be.

If you pop the formula into a spreadsheet, you can create a reference table for the dose range you are using.

0.5 mark * 0.4 concentration = 0.2 Units of a U-40 insulin
1.0 mark * 0.4 concentration = 0.4 units of a U-40 insulin
1.5 mark * 0.4 concentration = 0.6 Units of a U-40 insulin
2.0 mark * 0.4 concentration = 0.8 units of a U-40 insulin

Notice how every U-100 syringe mark increase = 0.2 units of a U-40 insulin; this makes it very easy to do tiny dose increases.
 
BJM said:
The difference between a U-100 and a U-4o insulin is the number of units in 1 milliliter.

U-100 insulin has 100 units per mL
U-40 insulin has 40 units per mL

When using the U-100 syringe, you can multiply any mark on it by 0.4 to get what the resulting U-40 insulin dose would be.

If you pop the formula into a spreadsheet, you can create a reference table for the dose range you are using.

0.5 mark * 0.4 concentration = 0.2 Units of a U-40 insulin
1.0 mark * 0.4 concentration = 0.4 units of a U-40 insulin
1.5 mark * 0.4 concentration = 0.6 Units of a U-40 insulin
2.0 mark * 0.4 concentration = 0.8 units of a U-40 insulin

Notice how every U-100 syringe mark increase = 0.2 units of a U-40 insulin; this makes it very easy to do tiny dose increases.
Click to expand...

Every full unit mark increases the U-40 dosage by 0.4 units. Every 1/2-unit mark increases the
U-40 dosage by 0.2 units. Don't know if Becky has U-100 syringes with 1/2-unit marks.
 
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