NaOH + Na2HPO4 --> Na3PO4 + H2O (aka tribasic sodium phosphate) Of course, once all the hydrogen is consumed there is no further reaction with sodium hydroxide. In general, adding sodium hydroxide to a solution of any of the sodium phosphates will change the pH.
Preoperative care. (Redirected from Pre-op) Preoperative care refers to health care provided before a surgical operation. The aim of preoperative care is to do whatever is right to increase the success of the surgery. At some point before the surgery the health care provider will assess the fitness of the person to have surgery.
â¢ The surgeon can never be paid to do a pre-op visit if s/he is going to take the patient to surgery. â¢ The surgeon can bill and be paid for an office visit for the purposes of a pre-op H&P after the decision for surgery is made, but before the surgery itself, if the hospital requires it. The surgeon can never be paid to do a pre-op visit if s/he is going to take the patient to surgery. â¢ The surgeon can bill and be paid for an office visit for the purposes of a pre-op H&P after the decision for surgery is made, but before the surgery itself, if the hospital requires it.