Med Calculations Flashcards
A 3 year old child who weighs 16kg is prescribed 200mg of oral Flucloxacillin, the correct dose is 12.5mg/kg. Is this the correct dose?
Yes
12.5mgx16kg=200mg
The strength of Flucloxacillin you have in stock is 125mg in 5mls. How many mls will you give if you need 200mg?
8mls
How many mis should a 22kg child be prescribed of the Flucloxacillin if the dose is 12.5mg/kg?
275mg
12.5mg x 22kg= 275mg
If the stock is 125mg in 5mls. How many mls would you give if you needed 275ml?
275/125=2.2 x 5= 11ml
A 28kg child is prescribed 8.3mg of oxycodone. The correct prescription is 0.1-0.2mg/kg. Is this the correct dose and if not what is the correct dose?
No.
- 1 mg x 28kg = 2.8mg
- 2mg x 28kg = 5.6mg
A 6 year old who has giardia and weighs 26kg has been prescribed 780mg of oral metronidazole. The correct prescription is 30mg/kg. Is this the correct dose?
Yes
30mg x 26kg = 780mg
The strength we have in stock is 500mg in 5mls, how much will you need to give if you require 780mg?
7.8ml
Every 100mg is 1ml, therefore you would need 7.8ml
A child is prescribed 360mg of oral paracetamol. They weigh the child who is 24kg. The bottle in stock is 100mg/1ml. How much would you give?
3.6ml
360/100 = 3.6ml
A child is prescribed 360mg of oral paracetamol. They weigh the child who is 24kg. The bottle in stock is 120mg/5ml. How much would you give?
15ml
360/120 = 3
3 x 5 = 15ml
A 30kg child has been prescribed 450mg of IV Vancomycin 6 hourly. The recommended dose is 10-15mg/kg depending on the severity of infection. Is this the correct dose?
Yes
450/30=15mg
The IV has been removed and the child has now been prescribed 300mg of oral vancomycin every 6 hours. The recommended dose it 5-10mg/kg. Is this the correct dose?
Yes
300/30=10mg
The strength of vancomycin the pharmacy has in stock is 200mg in 5mls. How many LMS will the child need for a 300mg dose?
7.5mls
300/200= 1.5
1.5 x 5 = 7.5ml
A 2.9kg ventilated neonate is prescribed 0.29mg of IV clonazepam. Recommended strength is 0.1-0.25mg/kg. Is this the correct dose?
Yes
0.1 x 2.9 = 0.29mg
a child has presented to ED with anaphylaxis. Weight is 27kg. Dose of adrenalin to be given is 0.01mg/kg IM. How much should the child be given?
- 27mg
0. 01 x 27 = 0.27mg
The recommended daily dose of IV gentamicin is 7.5mg/kg. How much would a 22kg child be given?
165mg
7.5 x 22 = 165mg
The strength the we have in stock is 80mg in 2ml. How many mis of gentamicin should the child be given? (You need165mg)
4.1ml
165 / 80 = 2.0625
2.0625 x 2 = 4.125 = 4.1ml
A child has been prescribed 195mg of paracetamol PRN. The recommended dose is 10-15mg/kg. Is this correct?
Yes
15 x 13 = 195mg
The strength of panadol in stock is 250mg in 5 LMS. How many mis would you have to give for a 195mg dose?
3.9ml
250/5 = 50
195/50=3.9ml
The other strength of panadol you have in stock is 100mg per 1ml. How many mis would give is you use this strength?
1.95ml
195/100 = 1.95ml
A 19kg child has been prescribed paracetamol. The oral dose for a child is 15mg/kg. What is the correct dose that should be prescribed?
285mg
15 x 19 = 285mg
A child has been prescribed 1gm of centric one. the recommended dose is 50mg/kg. The max a child should have is 1gm. Is this the correct dose?
No, this exceeds the dose recommended.
50 x 25 = 1250mg
A child is correctly prescribed Odansetron. 1.2mg via the Intravenous route. The available vials state Odansetron 4mg in 2ml. To administer the correct dose, what volume will you administer?
- 6ml
- 2/4=0.3
- 3 x 2= 0.6ml
A 10kg child is prescribed 200mg of nurofen. The correct dose is 7.5-10mg/kg. Is this the correct dose?
No, the correct dose would be 75mg-100mg of nurofen.
A child weighs 25kg, they have been charted the correct ibuprofen dose at 250mg. It comes in a syrup form, with the bottle reading “Ibuprofen 100mg in 5 ml” what volume would you administer?
12.5mls
250/100 =2.5
2.5 x 5 = 12.5ml
