Ms. Ewing typically sits in a wheelchair most of the day, ho…

Questions

Ms. Ewing typicаlly sits in а wheelchаir mоst оf the day, hоwever lately she has felt too weak and has been staying in bed most of the time.  Skin breakdown has developed on her coccyx and elbows with notable erythema, edema, warmth, tenderness, and yellow drainage.  Ms. Ewing has not been able to rate her coccygeal pain using a pain scale, however she moans, cries, and pushes you away when her coccyx is touched.  Otherwise, Ms. Ewing has intact, dry skin and mucous membranes, pitting edema of both legs and feet, and scant urine output.  Vital signs are:  38.7, 112, 26, 96/44.  The following laboratory values were assessed: Serum Electrolytes Na 155 mEq/L Cl  106 mEq/L K 2.9 mEq/L BUN     18 mg/dl Creat. 1.1 mg/dl  CO2 19 mmol/L Ca        7.9 mg/dl Mag     1.7 mEq/L Phos   4.7 mg/dl Glucose        185 mg/dl                Albumin   2.9 g/dl                          Lactic Acid   6.0 mEq/L   Ms. Ewing’s blood pressure would cause stimulation of which of the following?