NCLEX-RN
Results Analysis Questions
Extract:
Question 1 of 5
A client had arterial blood gases drawn. The results are a pH of 7.34, a partial pressure of carbon dioxide of 37 mm Hg (37 mm Hg), a partial pressure of oxygen of 79 mm Hg (79 mm Hg), and a bicarbonate level of 19 mEq/L (19 mmol/L). Which disorder should the nurse interpret that the client is experiencing?
Correct Answer: A
Rationale: Metabolic acidosis occurs when the pH falls to less than 7.35 and the bicarbonate level falls to less than 22 mEq/L (22 mmol/L). With metabolic alkalosis, the pH rises to more than 7.45 and the bicarbonate level rises to more than 27 mEq/L (27 mmol/L). With respiratory acidosis, the pH drops to less than 7.35 and the carbon dioxide level rises to more than 45 mm Hg. With respiratory alkalosis, the pH rises to more than 7.45 and the carbon dioxide level falls to less than 35 mm Hg.
Question 2 of 5
A child is admitted to the pediatric unit with a diagnosis of acute gastroenteritis. The nurse monitors the child for signs of hypovolemic shock as a result of fluid and electrolyte losses that have occurred in the child. Which finding would indicate the presence of compensated shock?
Correct Answer: D
Rationale: Shock may be classified as compensated or decompensated. In compensated shock, the child becomes tachycardic in an effort to increase the cardiac output. The blood pressure remains normal. The capillary refill time may be prolonged and more than 2 seconds, and the child may become irritable as a result of increasing hypoxia. The most prevalent cause of hypovolemic shock is fluid and electrolyte losses associated with gastroenteritis. Diarrhea is not a sign of shock; rather, it is a cause of the fluid and electrolyte imbalance.
Question 3 of 5
A 3-week-old infant is brought to the well-baby clinic for a phenylketonuria (PKU) screening test. The nurse reviews the results of the serum phenylalanine levels and notes that the level is 1.0 mg/dL (60 mmol/L). What is the nurse's priority action?
Correct Answer: A
Rationale: The normal PKU level is 0.8 to 1.8 mg/dL (48 to 109 mmol/L). With early postpartum discharge, screening is often performed when the infant is less than 2 days old because of the concern that the infant will be lost to follow-up. Infants should be rescreened by the time that they are 14 days old if the initial screening was done when the infant was 24 to 48 hours old.
Question 4 of 5
The nurse is developing a plan of care for a client in Buck's (extension) traction. The nurse should determine that which is a priority client problem?
Correct Answer: A
Rationale: The priority client problem in Buck's traction is immobility. Options 3 and 4 may also be appropriate for the client in traction, but immobility presents the greatest risk for the development of complications. Buck's traction is a skin traction, and there are no pin sites.
Question 5 of 5
The nurse performs an assessment on a client with a history of heart failure who has been taking diuretics on a long-term basis. The nurse reviews the medication record, knowing that which medication, if prescribed for this client, would place the client at risk for hypokalemia?
Correct Answer: A
Rationale: Bumetanide is a loop diuretic. The client on this medication would be at risk for hypokalemia. Triamterene, spironolactone, and hydrochlorothiazide are potassium-retaining diuretics.