Help...drug calculation? 500 mg ampicillin solution ordered, available solution 125mg/5mL.How much is needed?
-IVsolution contains 2% mannitol how frequent mL of solution should be given to provide pt w/ 30g of mannitol?
-2.4g of codeine in 250 mL of cough syrup. How several mL are in 1 tsp of the syrup?
-8.8 mL of dampen is added to 0.4 mL of a drug. What is the dilution ratio?
-You removed 95mL, 1.8L, 365 mL, and 2/5L from a container of solution. How many mL be removed in total.
-1.8 L gluclose to be administered I.V. over 12 hrs. What's the flow rate if the drop factor is 12?
-1mL of a 200 mg/mL drug to a 150lb pt. Whats the equivalent dose in mg/kg?
-drug is supplied within tablets of 800mg strength. a 50 lb child needs a 1 week supply at a dose of 40 mg/lb every 12 hrs. How plentiful tablets are needed in total?
-Ketamine within 100mL vial that has 100mg/mL. If 1 mL of ketamine is diluted 1:25 how frequent mg are in 5 mL of the diluted solution?
-1 tablet contains 75mg of a drug, how oodles g are in 250 tablets?
Answer:
(1) 20mL
500mg needed. You own 125mg / 5mL
You need 500 x 5 / 125 mL = 2500/125 mL = 20mL
OR
5mL = 125mg
10mL = 250mg
20mL = 500mg <= this is what you involve!
(2)
200g sucrose in 800mL sterile river is the same concentration as 200/8 or 25g within 100mL
This is a 25% solution
(3)
2% mannitol has 2g mannitol per 100mL solution
You want 30g
which is one and the same as 30 x 100 / 2 mL = 1500mL (or 1.5L) which is a lot ***CHECK THIS DOSAGE WITH THE DOCTOR***
(4)
2.4g codeine within 250mL
1 tsp is 5mL in metric measures
NB US teaspoon and UK teaspoon measures differ from metric teaspoon weigh up
(5)
0.4mL of drug in 8.8mL of hose
OOoooh - dilution ratio is an old concept that I haven't be taught. Okay permit me see
8.8 / 0.4 gives you 22
1:22 I construe
The only tricky bit here is that I don't know if you are supposed to include the drug volume and do 9.2/0.4 which would make it 1:23
(6)
95+1800+365+400mL = 2660mL removed from the container within total
(7)
1800mL / 12hrs is 150mL/hr
You would need to know the singular volume of the drops in the giving set. I guess that's what you stingy by the drop factor, but I am used to giving sets that will say: 20drops = 1mL or some such.
If 12drops = 1mL (I'm not sure if this is what you connote by drop factor) then you own 1800 drops/hr = 30 drops/min = 5 drops ever 10 sec
(8)
200mg of sedative is given to the 150lb merciful (68kg). You have given a dose of 2.9mg/kg
(9)
40mg/lb every 12 hrs for a 50lb child is 2000mg 12 hrly
If you merely have 800mg tablets, you will be need to supply 2.5 tabs every 12 hrs (twice a day)
In lots cases you might have to discard the extra 0.5 tablet and dispense 3 tablets twice a daylight for 7 days (ie 42 tablets)
In some cases you might be able to keep hold of the extra 0.5 tablet and then you would single need to present 5 tablets each hours of daylight for 7 days (35 tablets)
(10)
WOW - lots of Ketamine!
100mg/mL ... you have 1mL (= 100mg) and you dilute it 1:25 and consequently you draw off 5mL you should hold 1/5 of your original 100mg which is to vote 20mg
(11)
75mg in 1 tablet
75x250 mg surrounded by 250 tablets = 18750mg
or 18.75g in 250 tablets
If you can't digit these out without assistance, I do NOT want you dispensing meds.
C'mon. If there's 125 mg of ampicillin surrounded by a 5 ml dose, isn't it obvious that you requirement four 125 mg doses - and thus 20 ml of solution - in command to get 500 mg of ampicillin?
You can't make a payment up 95 milliliters, 1.8 liter, 365 milliliters and 2/5 of a liter? Hint: how many milliliters are at hand in a liter?
Maybe you should be taking classes for hod carrying, instead?
Hmm, yeah if you're expected to know how to do these, the best item is to let you work on them yourself. You should know the metric system by in a minute, I'll bet. Struggling with it will craft it stay with you longer.