Skip to content
View in the app

A better way to browse. Learn more.
allnurses

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.
Discussion

Pharm math help

hello everyone,

here is the problem:

you have to inject 0.60 mg of atropine.

supply: ampoules of

1/4 mg in 1 ml

or

1/2 mg in 1 ml

calculate the volume to inject.

i would answer it this way: if i take the ampoule with 1/4 mg/ 1ml 0.60:0.25=2.4ml to be injected

if i consider the ampoule which contains 1/2mg/1ml 0.60:0.2= 1.2ml to be injected

i really don't understand why the volume to be injected is not the same:banghead::banghead::banghead:

will the answer be: the solutin is more concentrated in the 1/2mg/1ml ampoule?:banghead::banghead::banghead:

Featured Replies

  • Expert

you have to inject 0.60 mg of atropine.

supply: ampoules of

1/4 mg in 1 ml

or

1/2 mg in 1 ml

calculate the volume to inject.

the idea is that you want to inject the smallest amount you can into someone's muscle, so you want to use the most concentrated solution. that would be the
1/2 mg in 1 ml.
1/2 mg is = 0.5 mg as a decimal.

0.60 mg
(dose desired)
/0.5 mg
(dose on hand)
x 1 ml
(amount the dose on hand comes in)
=
1.2 ml
(amount to give)

if you use the
1/4 mg in 1 ml (0.25 mg)
you would have to use

0.60 mg
(dose desired)
/0.25 mg
(dose on hand)
x 1 ml
(amount the dose on hand comes in)
=
2.4 ml
(amount to give)

since you want to inject the smallest volume into someone's muscle, you would use the ampoule of

1/2 mg in 1 ml and give 1.2 ml.

1/2 mg is twice as much mg as the 1/4 mg so you should expect the amount to be given to be at twice as much.

The math can be confusing and overwhelming until you feel "confident" in the formula you use.

GOOD LUCK!!!!!!!!!

  • Author

Thank you Daytonite & nurz2be for your answers, I can see clearly now:up:

Guest
This topic is now closed to further replies.
Go to topic listing

Currently Reading 0

  • No registered users viewing this page.

Account

Navigation

Search

Search

Configure browser push notifications
Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.