NGN Nclex RN Study Guide 2023 Guaranteed A+ Actual Questions and Answers, Complete 100%

NGN Nclex RN Study Guide 2023 Guaranteed A+ Actual Questions and Answers, Complete 100% 1. Which action should the nurse take before drawing a sample for ABGs from the radial artery?: Answer: Perform the Allen test to assess collateral circulation. Make the client's hand blanch by obliterating both the radial and the ulnar pulses. Then release the pressure over the ulnar artery only. If flow through the ulnar artery is good, flushing will be seen immediately. The Allen test is then positive; therefore, the radial artery can be used for puncture. If the Allen test is negative, repeat on the other arm. If that test is also negative, seek another site for arterial puncture. The Allen test ensures collateral circulation to the hand if thrombosis of the radial artery should follow the puncture. 2. What PO 2 value indicates respiratory failure in adults?: Answer: PO2 below 60 mm Hg 3. What blood value indicates hypercapnia?: Answer: PCO2 above 45 mm Hg 4. Identify the condition that exists when the PO 2 is less than 60 mm Hg (acute hypoxemia), the carbon dioxide tension rises above 50 mm Hg (acute hypercarbia, hypercapnia) and the pH drops below 7.35, or both.: Answer: Acute Respiratory Failure 5. List three symptoms of respiratory failure in adults.: Answer: Dyspnea/tachypnea; intercostal and sternal retractions; cyanosis