NCLEX-RN
NCLEX RN Free Practice Questions Questions
Extract:
Question 1 of 5
A 4-week-old infant is admitted to the emergency room in respiratory distress. Which of the following statements indicates the nurse's knowledge of the anatomy of the respiratory system in pediatric clients?
Correct Answer: A
Rationale: The airway in children is much smaller than it is in adults. The diameter of the trachea in the newborn is 4 mm and that of the adult is 20 mm. A small change in the diameter of the airway can make a major difference in the pediatric client. The tongue is proportionally larger in children and fills most of the oral cavity, thereby decreasing air space. The entire pediatric airway is elastic. Elasticity diminishes with age, however. The distances between respiratory structures are shorter than that of adults, and therefore organisms are able to move more rapidly down the throat, leading to more extensive respiratory involvement.
Question 2 of 5
Which measure helps reduce nipple soreness associated with breastfeeding?
Correct Answer: B
Rationale: Breaking suction by placing a finger between the baby’s mouth and the breast prevents trauma to the nipple, reducing soreness. Feeding early promotes latch but doesn’t address soreness directly, warm soaks may increase inflammation, and a bra supports but doesn’t prevent nipple trauma.
Question 3 of 5
Stat serum electrolytes ordered for a client in acute renal failure revealed a serum potassium level of 6.4. The physician is immediately notified and orders 50 mL of dextrose and 10 U of regular insulin IV push. The nurse administering these drugs knows the rationale for this therapy is to:
Correct Answer: D
Rationale: Sodium polystyrene sulfonate (Kayexalate), a cation exchange resin, exchanges sodium ions for potassium ions in the large intestine reducing the serum potassium. Calcium is administered to protect the myocardium from the adverse effects of hyperkalemia. Serum levels reflect hyperkalemia. Rapid catabolism releases potassium from the body tissue into the bloodstream. Infection and hyperthermia increase the process of catabolism. The administration of dextrose and regular insulin IV forces potassium back into the cells decreasing the potassium in the serum.
Question 4 of 5
The nurse is caring for a client with a history of peripheral artery disease. The nurse should expect the client to have:
Correct Answer: A
Rationale: Peripheral artery disease reduces blood flow, causing intermittent claudication (leg pain with activity) due to muscle ischemia.
Question 5 of 5
The nurse is assessing a trauma client in the emergency room when she notes a penetrating abdominal wound with exposed viscera. The nurse should:
Correct Answer: B
Rationale: Exposed viscera should be covered with sterile saline-soaked gauze to keep them moist and prevent infection until surgical repair. Replacing contents or using non-sterile/petroleum dressings is unsafe.