When a patient is NPO and is on fluids, putting 20 KCL in it will give them about 40-50 per day. However, it is thought that 1600 to 2000 mg ( 40 to 50 milliequivalents ) per day for adults is adequate.” Mayo Clinic. “Because lack of potassium is rare, there is no RDA or RNI for this mineral. If you are planning to give more than 3-4 liters of normal saline, switch to LR because of the risk of “expansion acidosis”. For Volume Replacementįree water (orally, via NGT, via PEG tube)Įven 1/4 NS or D5 1/4 NS works for maintenance fluids The reason for giving dextrose (D5) is to prevent catabolism. Pre-procedure or NPO patient who is euvolemic: treat this patient like a surgical patient if the patient is going to be NPO for longer than 6-12 hours. NB: For the hypervolemic patient, avoid fluids at all cost.Īlso, patients who are healthy, can take po, and are admitted for an elective reason don’t need fluids.
IV MAINTENANCE FLUID CALCULATOR FREE
The patient who needs free water, e.g.The euvolemic patient who can take PO and has been admitted for an elective reason (e.g.The euvolemic patient who will be NPO (or take inadequate po).patient with sepsis, pneumonia, intractable nausea/vomiting, etc). When it comes to IV fluids, there are a few basic scenarios. “Also, remember that dextrose gets almost immediately metabolized to water and CO2 when it enters the circulation so it is not osmotically active for too long.” Such patients need isotonic fluids (normal saline or Lactated Ringers). As such, D5 1⁄2 NS is NOT appropriate for most medical patients who are hypovolemic. That’s why D5 1⁄2 NS is not an isotonic solution.
Notice that sodium plays a bigger part in determining your osmolality than glucose. Serum osmolality = 2 (Na+) + Glucose/18 + BUN/2.8 Should you use NS, LR, or 1/2 NS as Maintenance fluids?
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