Which of the following applies to the coding book used for specifying services and procedures performed in the medical office?

The control variables most often used to ventilate infants are which of the following?

a. Volume limited, time cycled ventilation b. Pressure limited, time cycled ventilation c. Pressure limited, pressure cycled ventila-tion d. Volume limited, volume cycled ventilation

A blood specimen is received in the laboratory from a maternity patient in the obstetric unit with blood magnesium ordered by the attending physician

The serum magnesium levels is 5.90 mmol/L (RI = 3.0 – 5.0 mmol/L).). Which of the following explains the elevated serum magnesium? A. The patient has primary hyperparathyroidism B. The patient has had a massive heart attack C. The patient is on magnesium sulphate intravenous infusion because she is experiencing pre eclampsia D. The patient has Paget's disease