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Paramedic math!


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28 replies to this topic

#11 firedoc5

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Posted 18 January 2008 - 06:07 PM

One thing I noticed is that many tend to make the math more difficult than it really is. Perhaps from thinking "too much". Or even feel over-whelmed or intimidated about it. Start out with just a couple of basically easy problems so that they aren't blown away by being stumped by the very first problems. If they are stumped at the very beginning they may freeze on the rest.
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#12 WANTYNU

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Posted 18 January 2008 - 06:51 PM

I am looking for suggestions on types of problems, there are currently no word problems but I was thinking about adding them in, as part of doing medication calcs is picking and choosing what information you need for that problem.


Give these a try:

1. Ordered: Trilafon 24 mg po bid.
Available: Trilafon concentrate labeled 16 mg/5 ml.
How many ml will you administer?


2. Ordered: SoluMedrol 100 mg IM q8h
Available: Vial 1 ml in size labeled 125 mg SoluMedrol/3 ml
How many ml will you administer?
What size syringe is best to administer this dose?


3. Ordered: Ampicillin 400 mg IM q6h
Available: Vial with powder. Label reads: For IM injection, add 3.5 ml diluent (read accompaning circular). Resulting solution contains 250 mg Ampicillin per ml. Use solution within one hour.
How many ml will you administer?


4. The physician orders Lasix 20 mg IV stat for a child weighing 34 lbs. The pediatric handbook states that 1 mg/kg is a safe initial dose. Should you give this dose?


5. A child with a BSA of 0.32 M2 has an order for 25 mg of a drug with an average adult dose of 60 mg. Calculate the child's dosage. Is the physician's order correct?

6. Ordered: Infuse 2 L of Lactated Ringers solution in 24 hours. The administration set has 12 gtts/ml. How many gtts/min will you administer the IV?


7. Ordered: D5W 50 ml with 20 mEq KCl to infuse at 8 mEq KCL/hr per IV pump. How many ml of solution will you administer per hour?

8. Ordered: Gentamycin 100 mg/100ml IVPB q8h. The IV handbook states that it should be given over 90 min. What rate will you set on your IV pump?

9. Ordered: Nafcillin 900 mg IVPB q6h for a 27 kg child. Available: Dry powder in 1 g vials. Admin.. set: 60 gtts/ml. The vial states to reconstitute with 3.4 ml diluent to produce 1g/4 ml with concentration of 250 mg/ml. The medication book recommends giving a concentration of 100 mg/ml, duration of infusion 10-20 minutes.
How many milliliters of the reconstituted medication will you draw up for each dose?

10. How much fluid will you need to add to the medication drawn up in question 9 to achieve the recommended concentration?

11. What rate (gtts/min) will you infuse the medication in question 9?

Good luck!

Be Safe,
WANTYNU
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#13 tskstorm

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Posted 18 January 2008 - 11:58 PM

I am looking for suggestions on types of problems, there are currently no word problems but I was thinking about adding them in, as part of doing medication calcs is picking and choosing what information you need for that problem.


Give these a try:

1. Ordered: Trilafon 24 mg po bid.
Available: Trilafon concentrate labeled 16 mg/5 ml.
How many ml will you administer?


2. Ordered: SoluMedrol 100 mg IM q8h
Available: Vial 1 ml in size labeled 125 mg SoluMedrol/3 ml
How many ml will you administer?
What size syringe is best to administer this dose?


3. Ordered: Ampicillin 400 mg IM q6h
Available: Vial with powder. Label reads: For IM injection, add 3.5 ml diluent (read accompaning circular). Resulting solution contains 250 mg Ampicillin per ml. Use solution within one hour.
How many ml will you administer?


4. The physician orders Lasix 20 mg IV stat for a child weighing 34 lbs. The pediatric handbook states that 1 mg/kg is a safe initial dose. Should you give this dose?


5. A child with a BSA of 0.32 M2 has an order for 25 mg of a drug with an average adult dose of 60 mg. Calculate the child's dosage. Is the physician's order correct?

6. Ordered: Infuse 2 L of Lactated Ringers solution in 24 hours. The administration set has 12 gtts/ml. How many gtts/min will you administer the IV?


7. Ordered: D5W 50 ml with 20 mEq KCl to infuse at 8 mEq KCL/hr per IV pump. How many ml of solution will you administer per hour?

8. Ordered: Gentamycin 100 mg/100ml IVPB q8h. The IV handbook states that it should be given over 90 min. What rate will you set on your IV pump?

9. Ordered: Nafcillin 900 mg IVPB q6h for a 27 kg child. Available: Dry powder in 1 g vials. Admin.. set: 60 gtts/ml. The vial states to reconstitute with 3.4 ml diluent to produce 1g/4 ml with concentration of 250 mg/ml. The medication book recommends giving a concentration of 100 mg/ml, duration of infusion 10-20 minutes.
How many milliliters of the reconstituted medication will you draw up for each dose?

10. How much fluid will you need to add to the medication drawn up in question 9 to achieve the recommended concentration?

11. What rate (gtts/min) will you infuse the medication in question 9?

Good luck!

Be Safe,
WANTYNU


This would be more medic level questions, not pre-medic entrance exam.
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#14 tskstorm

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Posted 19 January 2008 - 12:03 AM

One thing I noticed is that many tend to make the math more difficult than it really is. Perhaps from thinking "too much". Or even feel over-whelmed or intimidated about it. Start out with just a couple of basically easy problems so that they aren't blown away by being stumped by the very first problems. If they are stumped at the very beginning they may freeze on the rest.


The test will be arranged into mini subjects, first 5 questions will be addition/subtraction, next 5 would be fraction multiplication etc....

This way when the results come in, it will be easy for the program to evaluate the candidates weaknesses, and possibly get them appropriate help before class starts.
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#15 tskstorm

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Posted 19 January 2008 - 12:05 AM

Take my calculator away and I’d be no help at all! Seriously, I couldn’t tell you something as easy as a 6th grade math question… Just in case you think I’m joking, I’m not… I can do basic math like adding and subtracting but anymore than 3 numbers it’s becoming difficult!

This is because my states education system is up S#%t creek without a paddle. Calculators were used in EVERY math class and it was suggested that you take a calculator to exams (because without it the teachers know we’d all fail and they’d look bad and maybe get a pay cut). There was no need to work it out in your head.

I’ve got a mate who’s going into a 2nd year accounting degree, at football he uses a calculator to work out change from someone buying a pie at the canteen! Yet he got top marks in Advanced Math because he had a calculator…

Teachers just assume all kids have a sound knowledge of basic math, which is the biggest load of crap! Most people I know would be able to draw you up a Linear graph or work out a Pythagoras theorem but wouldn’t have the first clue when it came to basic multiplication, division, fractions ect… Every year I did Math in high school, without a doubt we’d spend the first few weeks going through the ‘introduction to calculators’ chapter.

I’d say keep the basic stuff in there! I know it’s going to take a lot of work to bring my math skills to an acceptable level! :|


The thing here, is two things, one, you will have to do basic subtraction in your long division, so 2 or 3 basic additions and subtractions questions should suffice, I mean if you can't do the 2 or 3 right, you wont get 10 of them right either. :)
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