Which of the following would be categorized as prerenal oliguria?

Your female patient has been injured in a vehicle crash which has critically injured her husband. Her condition is stable but she is obviously distraught over the condition of her husband. Which of the following would be MOST appropriate in this circumstance?

A) Tell her that she will find out more when you get to the hospital. B) Place your hand on her shoulder and tell her that he is receiving the very best care available. C) Tell her that you will go check on him and you will be right back. D) Advise her that it is unlikely that he will survive since he was injured so badly.

Explain the anion gap and how it is calculated.

What will be an ideal response?