NUR 265 Exam 3 Study Questions (NUR 265) RATED A PLUS

NUR 265 Exam 3 Study Questions ► What is the normal arterial blood gas (ABG) range for the partial pressure of oxygen (PO2)? o 80-100 mmHg o What if it’s higher than 100? What if it’s lower than 80?  Higher = too much oxygenation … lower = hypoxia ► What is the normal arterial blood gas (ABG) range for the partial pressure of carbon dioxide (PaCO2)? o 35-45 mmHg o What if it’s lower than 35? What is it’s higher than 45?  Decreased = Respiratory alkalosis … increased = Respiratory Acidosis ► What is the normal range for the compensatory arterial blood gas (ABG) bicarbonate (HCO3)? o 21-28 mEq/L o What is it’s higher than 28? What if it’s lower than 21?  Higher = respiratory acidosis (compensation for metabolic alkalosis) … Lower = respiratory alkalosis (compensating for metabolic acidosis) ► What is the normal range for glucose? o 60-100 mg/dL ► What is the range of pre-diabetes for an impaired fasting glucose (IFG) test? o 100-125 mg/dL ► What is the range of pre-diabetes for a 2 hour oral glucose tolerance (IGT) test? o 140-199 mg/dL ► What is the normal range for a glycosylated hemoglobin (HbA1C) test?  4-6% ► What is the reference range for the electrolyte phosphorus? o 3 – 4.5 mg/deciLiter ► What is the reference range for the electrolyte magnesium? o 1.3 – 2.1 milli-Equivalents/Liter ► What is the reference range for the electrolyte chloride? o 98 – 106 milli-Equivalents/Liter ► What is the reference range for the electrolyte calcium? o 9 – 10.5 mg/deciLiter ► What is the reference range for the electrolyte potassium? o 3.5 – 5 milli-Equivalents/Liter ► What is the reference range for the electrolyte sodium? o 136 – 145 milli-Equivalents/Liter P a g e 2 ► What is the reference range for hemoglobin? o 14-18 gram/deciliter ► What is the reference range for hematocrit? o 42-52% ► What is the reference range for blood osmolarity? o 285-295 mOsm/kg ► What are the normal levels for serum creatinine? o 0.6-1.2 ► What are the normal levels for BUN? o 10-20 ► What is the leading cause of death in head trauma patients who arrive to the hospital? o Increased Intracranial Pressure ► What causes increased intracranial pressure to kill someone? o Pressure causes the medulla oblongata to herniate o What symptoms occur when the medulla oblongata gets compressed from intracranial pressure?  Severe bradycardia, widening pulse pressure, elevated systolic pressure  What is this presentation of symptoms known as?  Cushing’s triad ► What section of the brain will experience inflammation from intracranial pressure first? o The frontal lobe o What is the frontal lobe responsible for?