The Nursing Math Thread

Daytonite, BSN, RN · Feb 19, 2009

Ok so then I will never say never, but in most cases you run up to the tenths for po med, I think I understand, thanks for your help, more helpful than my professors

My answer is based on what goes on in real clinical situations and what equipment I know is available to me.

mb1949 · Feb 19, 2009

Thanks. that is the type of information I need.

wondergirlhere · Feb 26, 2009

Here are some IV questions for you?

a paediatric patient, 8 years old, weighs 25 kg and height 120 cm

Pt is fasting for a laporoscopy and is scheduled for it at 1100 hrs.

Day 01

Orders: Ampicillin 500 mg IV, give 1hr preop

Gentamicin 80 mg IV, give 1 hr preop

Indomethacin 25 mg supp given 2 hrs preop

Morphine 5 mg IV stat

Naloxone 0.5 m IV for Resp

she finally goes in for surgery at 1100 hrs, you give her her IV antibiotics, and she returned from ruptured appendix sugery, and the following meds are ordered:

Ampicillin 60 mg IV q 8h

Gentamicin 60 mg IV q 8 hr

Gen levels 3 rd dose

Meperidine 25-50 mg IM/SC q6h or Morphine 2-4 mg IM/SC q3-4 hr

Dimenhydrainate 25 mg PO/IM/supp q 4 hr prn

Indomethacin 25 mg supp BID (0600 hrs and 1800 hrs)

Nalozone 0.5 mg IV fo Respd

Are these medication dosage safe?

And what are some nursing actions in order to safely administer meds?

: )

Daytonite, BSN, RN · Feb 26, 2009

Here are some IV questions for you?
a paediatric patient, 8 years old, weighs 25 kg and height 120 cm
Pt is fasting for a laporoscopy and is scheduled for it at 1100 hrs.
Day 01
Orders: Ampicillin 500 mg IV, give 1hr preop
Gentamicin 80 mg IV, give 1 hr preop
Indomethacin 25 mg supp given 2 hrs preop
Morphine 5 mg IV stat
Naloxone 0.5 m IV for Resp
she finally goes in for surgery at 1100 hrs, you give her her IV antibiotics, and she returned from ruptured appendix sugery, and the following meds are ordered:
Ampicillin 60 mg IV q 8h
Gentamicin 60 mg IV q 8 hr
Gen levels 3 rd dose
Meperidine 25-50 mg IM/SC q6h or Morphine 2-4 mg IM/SC q3-4 hr
Dimenhydrainate 25 mg PO/IM/supp q 4 hr prn
Indomethacin 25 mg supp BID (0600 hrs and 1800 hrs)
Nalozone 0.5 mg IV fo Respd
Are these medication dosage safe?
And what are some nursing actions in order to safely administer meds?
: )

Not all of these are safe dosages. Look in a nursing drug reference for information on safe administration. This is a thread about math calculation.

Fundie · Mar 11, 2009

I have found the book, Calculate with Confidence, by Deborah Gray Morris. It is great, comes with a CD, so you can practice the calculations over and over.

jnursing09 · Mar 23, 2009

These are amazing sites God is so good to all of us.

cursedandblessed · May 18, 2009

here's some practice problems you can print also some links to others, i haven't checked out the links yet:

http://www.msumedcalc.com/links.html

kitti419 · May 24, 2009

Any takers? I'm preparing for the TEAS & this one came off of the testprepreview.com site. I can't figure how the correct answer is "A." I'm sorry in advance if this is the wrong thread. I cross posted in another sticky. This thread is very helpful. Thanks, everyone.

10. What is the cost in dollars to steam clean a room W yards wide and L yards long it the steam cleaners charge 10 cents per square foot? A. 0.9WL

B. 0.3WL

C. 0.1WL

D. 9WL

E. 3WL

Daytonite, BSN, RN · May 24, 2009

Any takers? I'm preparing for the TEAS & this one came off of the testprepreview.com site. I can't figure how the correct answer is "A." I'm sorry in advance if this is the wrong thread. I cross posted in another sticky. This thread is very helpful. Thanks, everyone.
10. What is the cost in dollars to steam clean a room W yards wide and L yards long it the steam cleaners charge 10 cents per square foot?
A. 0.9WL
B. 0.3WL
C. 0.1WL
D. 9WL
E. 3WL

You need to convert the cost to cents/square yard first. A yard is equal to 3 feet. A square yard is equal to 9 feet (length of 3 feet x width of 3 feet). If you draw a picture, you will easily see that there are 9 square feet in a square yard and at 10 cents a square yard that ends up as 90 cents for a square yard (10 cents for each square foot). Now you can work the problem. . .multiplying the width of the room (W) x the length of the room (L) x the cost to steam clean it in cents/square yard (90 cents) to get the answer.

W X L x 90 cents = 90WL which they turned into a decimal of

0.9WL

(Money is usually given in decimals.)

kitti419 · May 25, 2009

Ok. Got another one. I feel like I am onto something thinking John is painting at 1.5 times the rate of Sally, so she is doing 75% of the work or something...but the answer is 2 hours 24 mins, which I don't quite understand.

2. If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together? A. 2 hours and 24 minutes

B. 3 hours and 12 minutes

C. 3 hours and 44 minutes

D. 4 hours and 10 minutes

E. 4 hours and 33 minutes

Daytonite, BSN, RN · May 25, 2009

if sally can paint a house in 4 hours, and john can paint the same house in 6 hour, how long will it take for both of them to paint the house together?

a. 2 hours and 24 minutes

b. 3 hours and 12 minutes

c. 3 hours and 44 minutes

d. 4 hours and 10 minutes

e. 4 hours and 33 minutes

this is an algebra work problem. the formula for these are set up as follows: 1/4 (what sally can do) + 1/6 (what john can do) = 1/x (what they can do together). solve for x.

1/4 + 1/6 = 1/x

(24) 1/4 + (24) 1/6 = (24) 1/x

6 + 4 = 24/x

10x = 24

x = 24/10

x = 2.4

2.4 = 2 hours

, and the

.4

multiplied x 60 minutes = 24 minutes, so the answer is

2 hours and 24 minutes

shrimpchips, LPN · May 28, 2009

:banghead: This problem is driving me crazy! I don't even know where to begin in terms of setting it up, etc...

Mr. Angus, age 79, is admitted to the hospital with an exacerbation of Congestive Heart Failure. His main IV order is 1500 ml NS with 20mEq KCl to run over 24 hours. He also has a urinary tract infection and is receiving IV antibiotics 100 ml every 6 hours as treatment. He is currently NPO and ordered a fluid restriction of 1500 ml in 24 hours. How much of his primary IV will Mr. Angus receive if the fluid restriction is enforced?

The correct answer is 1100mL.

:confused: