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.
Pre-operative adjective Referring to the logistics of preparing for a surgical procedure/operation. See Pre-op time noun. 1. A popular term for all forms of careâeg, medication provided to a Pt prior to a surgical intervention.
READER QUESTIONS: Pre-Op and Post-Op--1 Consult or 2? - Published on Tue, May 29, 2007 Question: A patient with chronic obstructive pulmonary disease (COPD) is scheduled for a lobectomy. The thoracic surgeon requests the patientâs pulmonologist to provide the preoperative risk assessment. The pulmonologist uses ICD-9 codes for âPre-op--V72.82â and âCOPD without exacerbation--491.20.â.