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Need help on 2 math questions
- Thread starter OleMissRx
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Ya I got the same answer. Not sure about #2, but might be 7 mL/dose
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This is for Probelm #2 :
Step 1: 200ml-60 ml = 140mL total
If to GIVE 2 tsp = give 2 x 5ml = 10ml (each dose)
Step 2: 140ml of guaif./200ml total x 100 = 70% of gauif.
Not done: they're asking EACH? so 70% of each ml is 10 x 0.7 = 7 mL
That's my answer!
Step 1: 200ml-60 ml = 140mL total
If to GIVE 2 tsp = give 2 x 5ml = 10ml (each dose)
Step 2: 140ml of guaif./200ml total x 100 = 70% of gauif.
Not done: they're asking EACH? so 70% of each ml is 10 x 0.7 = 7 mL
That's my answer!
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Yeah, I just overlooked it. Been studying all day. I'm tired. Thank you. They're both pretty simple. I should've known how to do those.
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hey can anyone here explain me how to tackle with this kind of problems
A patient presents with a prescription for a prednisone taper:
Prednisone 30 mg daily x 5 days then decrease by 5 mg every 3 days until taper ends
How many prednisone 5 mg tablets will be dispensed to fill this prescription?
A.30
B.70
C.100
D.75
E.66
A patient presents with a prescription for a prednisone taper:
Prednisone 30 mg daily x 5 days then decrease by 5 mg every 3 days until taper ends
How many prednisone 5 mg tablets will be dispensed to fill this prescription?
A.30
B.70
C.100
D.75
E.66
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30mg x 5 d = 150mg
25mg x 3 d = 75mg
20mg x 3 d = 60mg
15mg x 3 d = 45mg
10mg x 3 d = 30mg
5 mg x 3 d = 15 mg
total = 150mg + 75mg + 60mg + 45mg + 30mg + 15mg = 375mg
375mg divide by 5mg tabs = 75 tabs
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I have this easy question from 120 calculations, my question is how would one understand that its a mass or volume when the specific gravity is given along with a weight/weight substance??
To be more specific here is the example question:
Dimethyl Sulfoxide Liquid is supplied as a 50% weight / weight solution with a specific gravity of
1.40. What is the percent weight / volume of liquid dimethyl sulfoxide?
I thought it was mass given (w/w) so i divided by specific gravity but when i saw the answers it was multiplied by specific gravity which means it is assumed to be the volume.
I hope i made my question clear..
To be more specific here is the example question:
Dimethyl Sulfoxide Liquid is supplied as a 50% weight / weight solution with a specific gravity of
1.40. What is the percent weight / volume of liquid dimethyl sulfoxide?
I thought it was mass given (w/w) so i divided by specific gravity but when i saw the answers it was multiplied by specific gravity which means it is assumed to be the volume.
I hope i made my question clear..
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Multiply the 50 by 1.4... It is 70% w/v
