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2024 NGN NCLEX RN Study Guide Guaranteed A+ Actual Questions and Answers, Complete 100%
- 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
- 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 1 / 2
6. List four common causes of respiratory failure in children.:
Answer:
Congenital heart disease; infection or sepsis; respiratory distress syndrome; aspiration; fluid overload or dehydration
- What percentage of O2 should a child in severe respiratory distress receive?:
Answer:
100%
8. 1. Define shock.:
Answer:
- Widespread, serious reduction of tissue perfusion, which leads to generalized
impairment of cellular function.
9. What is the most common cause of shock?:
Answer:
hypovolemia
10. . What causes septic shock?:
Answer:
Release of endotoxins by bacteria, which act on nerves in vascular spaces in the periphery, causing vascular pooling, reduced venous return, and decreased cardiac output and result in poor systemic perfusion
11. What is the goal of treatment for hypovolemic shock:
Answer:
Quick restoration of cardiac output and tissue perfusion.
12. Infant and children:
Answer:
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