About to begin 2nd semester and I feel like this should be really easy for me to understand, but I just can't get my head around it lol. If someone could dumb it down and explain it to me, I would appreciate it.
Your patient is very dehydrated. His blood pressure is extremely low at 80/50. Pulses are weak. The MD has ordered 0.45% NS at 100 ml/hr. The gtt/factor is 15 gtts/ml. How fast will you run this IV? Is this a safe order?
I got the rate: 25 gtt/min
I don't fully understand how it's not a safe order though.
My thinking: Solution is hypotonic (low solute, higher water), patient is dehydrated (lower body water = higher solute concentration), so why would it be bad for the patient to receive low solute fluids if he is dehydrated?
Here's what the answer key says:
This is a hypotonic fluid (osmolarity - 145). Fluids may shift from the intravascular compartment into the intracellular and interstitial compartment. This will cause the blood pressure to decrease further. This is not a good IV solution to give an already hypotensive patient.