Parkland Formula Help

Help please 
OK... I am working on my education here and focusing on treating burn victims... If I understand correctly the Parkland Formula is used to calculate flow rate...
4cc x Kg x BSA
1/2 over 1st 8 hours
1/2 over last 16 hours
I keep botching these calculations on tests where I am required to calculate manually. I think I am getting mixed up on the half 8  half 16 split. Would someone please post a sample calculation  and slip me an aspirin while you're at it! Thanks in advance. 

Apr 24, '08ASA 81mg given 8:30pm ... AC
Pretty simple ... Just remember that half of the total amount is given in the first 8 hours from when the burn initially happened (pt burned at 0800, but gets to the ER 1 hour later, he'll get 8000cc's in 7 hours) and then the rest is over the next 16hrs to make a total of 24hrs.
Pt burned on 50% of body ...
Pt weighs 80kg
4cc/kg/hr = 4 x 50 x 80 = 16000cc total needed to be given
8000cc's given in the first 8hrs and ...
8000cc's given over the following 16hrs ... 
Apr 24, '08Quote from Sal_Byou have an 80kg patient with 40% bsa involved.Help please 
OK... I am working on my education here and focusing on treating burn victims... If I understand correctly the Parkland Formula is used to calculate flow rate...
4cc x Kg x BSA
1/2 over 1st 8 hours
1/2 over last 16 hours
I keep botching these calculations on tests where I am required to calculate manually. I think I am getting mixed up on the half 8  half 16 split. Would someone please post a sample calculation  and slip me an aspirin while you're at it! Thanks in advance.
That's a total of 12.8L (4x80x40).
you're going to give 6.4L in the 1st 8 hours and 6.4L over the last 16 (which translates to exactly 1/2 the flow rate; e.g. 800mL/hr for the 1st 8 and 400mL/hr for the remainder of the 24 hours).
For prehospital personnel, we worked with our medical director to figure out a "PreHospital Parkland" that was more usable. We decided on .25cc x kg x bsa = minimum amount of fluid to have in upon arrival at the ER. so for the example above...shoot towards at least 800cc infused by arrival time. This was based on the golden hour of trauma and the platinum 10 minutes, thinking urban settings and no longer than 30 minutes from occurence to ER. Of course you'd modify it for a rural setting.
We used to fly patients to a regional burn center fairly often and the first time I delivered a patient with the Parkland all figured out, the receiving nurse told me that was an archaic formula for volume replacement and a more accurate measurement was based on the BMI.
I'd be real interested to hear any ER/burn ICU nurses opinions about this. It's "sparked" a few debates before. 
Apr 24, '08[FONT=Arial Narrow]There is one major problem many people have calculating fluid replacement with the Parkland Formula. The volume to be infused is calculated from the time of the burn, not the time of arrival at your facility. When you receive the patient you need to calculate how much fluid they have received prior to arrival and adjust the infusion rate accordingly.
[FONT=Arial Narrow]For example, the patient in Conrad's scenario arrives at your facility 2 hours post burn and IV fluid has been infusing 250 mL/hour. To correct this, subtract the 500 mL infused from the 8000 mL calculated, then divide the 7500 mL by the remaining 6 hours.
[FONT=Arial Narrow]RNREMTP, how exactly were they calculating infusion rate using BMI. I'm having a hard time grasping this since BMI is a height/weight ratio. I could easily understand how it would be more accurate if they were using BSA as compared to weight. I did a quick google search and could not find any reference to using BMI to calculate fluid replacement. I did find a few articles at emedicine.com which referenced the Galveston Formula, which BSA was used rather than weight, however the articles stated this was used primarily for pediatric patients who didn't quite fit the rule of nines. 
Apr 28, '08Of course that all hinges on the estimation of burned area being correct. Have left burns behind me now but started seeing goal directed fluid strategies with the goal being urine output of approx 1 to 1.5 ml/kg/min with parkland being a starting point. If u/o drops increase the rate... That said I left that area about 18 months ago so much may have changed.

Apr 30, '08I agree with everything that was said above. In my experience the Parkland Formula is the starting point and it depends on the doc and the condition of the patient where you go from there. I can say that almost 80 percent of the time the Parkland is followed for the first eight hours and then our doc has us keep the output over 30cc per hour. We do keep to the 30cc on the hour very closely and the rate of the fluids is titrated accordingly. We also have done some studies where we infuse Vitamin C for the first 24 hours (it is a pain by the way) and they start on the Parkland but it is adjusted differently this way also. Dont know if that helps, but if you get the opportunity to see a critical burn patient all of this will make a lot more sense. It is hard to imagine why and how, but seeing it helps.

Jun 2, '08Keep in mind that the Parkland Burn Formula is a guideline for resuscitation of the burn injured patient. Patients with additional injuries, for example: trauma and inhalation, may require additional fluid resuscitation above the 4cc/kg/% TBSA.
Initial resuscitation is vital. Adequate resuscitation maintains perfusion of the organs and tissue perfusion. Adequate perfusion could mean the difference between a 35% TBSA and a 40% TBSA. Injury continues to occur if not adequatley resuscitated in the inital 8 hours post burn injury. If you would like to read more on this, I suggest looking up the "Zone of Stasis".
Good luck. 
Sep 10, '08here is an example:
4ml. 60%. 70kg= 16800
1st 8 hours is half= 8400 your rate should be 8400:8= 1050ml/hr
next 16 hours is also 8400... so ... that number divided in 16= 525 ml/hr
wishing this assists you ...
thanks
air rn:typing