Nursing Elites

1. Which of the following infant behaviors demonstrates the concept of object permanence?

• A. The infant cries when his mother leaves the room.
• B. The infant looks at the floor to find a toy that he was playing with and dropped.
• C. The infant picks up another toy after the one he was playing with rolls under the couch.
• D. The infant participates in a game of patty-cake.

Correct answer: B

Rationale: Object permanence occurs when the infant learns that something or someone still exists even though they might not be able to see it or them. This typically develops between 9 and 10 months of age. The correct answer, 'The infant looks at the floor to find a toy that he was playing with and dropped,' demonstrates object permanence as the infant understands that the toy still exists even though it is temporarily out of sight. Choices A and C do not directly relate to object permanence as the behaviors described do not necessarily indicate an understanding of objects existing when out of sight. Choice D is incorrect as participating in a game of patty-cake does not involve demonstrating object permanence. Peek-a-boo is a more suitable example of a game that demonstrates object permanence, as the infant continues to look for the hidden face, understanding that it still exists even though temporarily unseen.

2. In a client with asthma who develops respiratory acidosis, what should the nurse expect the client's serum potassium level to be?

• A. normal
• B. elevated
• C. low
• D. unrelated to the pH

Correct answer: B

Rationale: In respiratory acidosis, the serum potassium level is expected to be elevated. This occurs because potassium shifts from cells into the bloodstream as a compensatory mechanism to maintain acid-base balance. Choices A, C, and D are incorrect. A normal potassium level is not expected in respiratory acidosis. A low potassium level is more commonly associated with alkalosis, not acidosis. The potassium level is indeed related to pH changes in respiratory acidosis, leading to the expected elevation.

3. Which of the following injuries, if demonstrated by a client entering the Emergency Department, is the highest priority?

• A. open leg fracture
• B. open head injury
• C. stab wound to the chest
• D. traumatic amputation of a thumb

Correct answer: C

Rationale: A stab wound to the chest might result in lung collapse and mediastinal shift that, if untreated, could lead to death. Treatment of an obstructed airway or a chest wound is a higher priority than hemorrhage. The principle of ABC (airway, breathing, and circulation) prioritizes care decisions. In this scenario, the stab wound to the chest poses the highest risk to the client's life as it can lead to severe complications such as lung collapse and mediastinal shift. Addressing this injury promptly is crucial to prevent further harm or potential fatality. Open leg fracture, open head injury, and traumatic amputation of a thumb, while serious, do not pose an immediate life-threatening risk compared to a stab wound to the chest.

4. A 3-day post-operative client with a Left Knee Replacement is complaining of being chilled and nauseated. Her TPR is 100.4-94-28 and Blood Pressure is 146/90. What is the nurse's best action?

• A. Call the surgeon immediately.
• B. Administer Extra Strength Tylenol per orders.
• C. Assess the surgical site.
• D. Offer extra blankets and increase fluids.

Correct answer: A

Rationale: The correct answer is to call the surgeon immediately. The client's symptoms of being chilled and nauseated, along with an elevated temperature (100.4°F), could indicate an infection following the knee replacement surgery. In this scenario, prompt action is crucial to prevent any potential complications. Calling the surgeon allows for further assessment, possible diagnostic tests, and appropriate interventions to be initiated. Administering Tylenol or offering blankets and fluids may temporarily alleviate symptoms but do not address the underlying issue of a potential infection. Assessing the surgical site is important but not as urgent as involving the surgeon in this situation.

5. The nurse is caring for a client receiving warfarin therapy (Coumadin®) following a stroke. The client's PT/INR was completed at 7:00 A.M. prior to the morning meal with an INR reading of 4.0. Which of the following is the nurse's first priority?

• A. Call the physician to request an increase in the Coumadin® dose.
• B. Administer a vitamin K injection IM and notify the physician of the results.
• C. Assess the client for bleeding around the gums or in the stool and notify the physician of the lab results and latest dose of Coumadin®.
• D. Notify the next shift to hold the daily dose of Coumadin® scheduled for 5:00 P.M.

Correct answer: B

Rationale: In a client receiving warfarin therapy with a high INR of 4.0, the nurse's first priority is to administer a vitamin K injection intramuscularly (IM) and notify the physician of the results. An INR of 4.0 indicates excessive anticoagulation, putting the client at risk of bleeding. Vitamin K is the antidote for warfarin overdose and helps to reverse its effects. It is crucial to administer vitamin K promptly to prevent bleeding complications. Calling the physician to request an increase in the Coumadin® dose is inappropriate and dangerous in this situation, as it would further raise the INR. Assessing the client for bleeding and notifying the physician is important but not the first priority when faced with a critically high INR. Holding the daily dose of Coumadin® may be necessary after administering vitamin K, but it is not the primary action needed to address the acute high INR level.

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