Lumbago and low back pain are reported with the same code

Along with hypotension, what other sign indicates a patient is going into decompensated shock?

a. increased breathing rate b. decreased urine output c. altered-mental status d. diaphoresis

A pulse oximeter differentiates oxyhemoglobin from deoxygenated hemoglobin by which of the following methods?

a. Relating cyclical changes in light transmis-sion through the sampling site. b. Shining and comparing two wavelengths of light through the sampling site. c. Direct measurement by a heated polaro-graphic electrode applied to the skin. d. Using a color sensing device that absorbs one wavelength of light through the skin.