Mark's copy of Drug Calculations

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Mark Hodds

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Mark Hodds 5 years, 8 months ago

Created this as a copy of Drug Calculations.

Name	Status	Author	Last Modified
Drug Calculations	Ready to use	Mark Hodds	14/06/2019 10:41
Drug Calculations 1	Ready to use	Mark Hodds	20/04/2017 14:12
Lois's copy of Drug Calculations	draft	Lois Rollings	05/06/2019 16:07
Drug Calculations - different weights	draft	Mark Hodds	09/07/2019 16:46
Drug Calculations - different weights, different amounts	draft	Mark Hodds	10/07/2019 13:29
Mark's copy of Drug Calculations - different weights, different amounts	draft	Mark Hodds	10/07/2019 13:24
Mark's copy of Mark's copy of Drug Calculations - different weights, different amounts	draft	Mark Hodds	10/07/2019 13:24
Drug Calculations - different weights, different amounts, different volumes	draft	Mark Hodds	05/08/2019 10:48
Drug Calculations with weights	draft	Mark Hodds	05/08/2019 10:09
Mark's copy of Drug Calculations	draft	Mark Hodds	05/08/2019 09:55
Mark's copy of Drug Calculations	draft	Mark Hodds	05/08/2019 09:55
Mark's copy of Drug Calculations	draft	Mark Hodds	05/08/2019 09:55
Mark's copy of Drug Calculations	draft	Mark Hodds	05/08/2019 09:55
Drug Calculations with weights - different weights	draft	Mark Hodds	05/08/2019 10:18
Drug Calculations with weights - different weights, different amounts	draft	Mark Hodds	05/08/2019 10:31
Drug Calculations with weights - different weights, different amounts, different volumes	draft	Mark Hodds	05/08/2019 10:48

There is one other version that you do not have access to.

Question statement

Give any introductory information the student needs.

			Name	Type	Generated Value

a	integer	1
b	integer	5
c	decimal	dec("0.200")
d	decimal	dec("5.000")

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
random(1,5)

JME function reference

Description

Describe what this variable represents, and list any assumptions made about its value.

Can an exam override the value of this variable?

Generated value: `integer`

This variable doesn't seem to be used anywhere.

Parts

Gap-fill
1. Gap Number entry
  Add

Gap-fill

Ask the student a question, and give any hints about how they should answer this part.

Your patient has been prescribed $\var{a}$ mg of a drug as an injection. The stock strength given is $\var{b}$ mg in $1$ ml. How many ml do you give to the patient? Give your answer to 3 decimal places where necessary.

Unnamed gap ml

Advice

Solution

In order to calculate the amount of drug in ml, you need to use the following formula:

$\dfrac{\text{Prescribed dose}}{\text{Stock Strength}}$ $\times$ Stock dose.

In this question: Prescribed dose is $\var{a}$ mg, Stock Strength is $\var{b}$ mg and Stock dose is 1ml.

Using the formula: $\dfrac{\var{a}}{\var{b}}$ $\times$ $1$ = $\var{c}$ ml.

Alternative Solution

You are told that the stock strength of the drug is $\var{b}$ mg in $1$ ml.

So for every $\var{b}$ mg of the drug we need, we need to give the patient $1$ ml.

This means $\var{b}$ mg = 1ml.

We need $\var{a}$ mg.

In order to get $\var{a}$ mg, we divde $\var{b}$ mg by $\var{d}$ .

Because $\var{b}$ mg = $1$ ml and we have divided $\var{b}$ mg by $\var{d}$ to get $\var{a}$ mg, we must divide the right hand side of the equals sign by $\var{d}$ also.

So, we have $\dfrac{\var{b}}{\var{d}}$ = $\dfrac{1}{\var{d}}$ .

$\var{a}$ = $\var{c}$ ml.

Therefore we must need to give the patient $\var{c}$ ml.

Give a worked solution to the whole question.

Use this tab to check that this question works as expected.

There was an error which means the tests can't run:

Part	Test	Passed?
Gap-fill
Gap-fill		Hasn't run yet
Number entry
Number entry		Hasn't run yet

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Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

History

Comment

Checkpoint description

Mark Hodds 5 years, 8 months ago

Error in variable testing condition

Error

Warning

Generated value: `integer`

Parts

Gap-fill

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Mark's copy of Drug Calculations

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

History

Comment

Checkpoint description

Mark Hodds 5 years, 8 months ago

Error in variable testing condition

Error

Warning

Generated value: integer

Parts

Gap-fill

Generated value: `integer`