ATI RN
ATI Anatomy and Physiology
1. Which of the following is the measurement of the percentage of red blood cells in whole blood?
- A. Hematocrit
- B. Hemoglobin
- C. Mean corpuscular volume
- D. Reticulocyte count
Correct answer: Hematocrit
Rationale: The correct answer is 'Hematocrit.' Hematocrit is the measurement of the percentage of red blood cells in whole blood. It is used to diagnose conditions such as anemia and dehydration. Choice B, 'Hemoglobin,' measures the amount of hemoglobin in the blood, not the percentage of red blood cells. Choice C, 'Mean corpuscular volume,' measures the average volume of a red blood cell, not the percentage of red blood cells. Choice D, 'Reticulocyte count,' measures the percentage of young red blood cells in the blood, not the percentage of red blood cells.
2. A new manager is implementing an initiative with the desired outcome of having the unit run more smoothly. What quality is the manager demonstrating?
- A. Being unrealistic
- B. Being a change agent
- C. Being democratic
- D. Being authoritarian
Correct answer: B
Rationale: The correct answer is B: Being a change agent. The manager is demonstrating the quality of being a change agent by implementing an initiative aimed at improving the unit's operations. A change agent initiates and drives changes to enhance effectiveness and efficiency within the unit. Choice A is incorrect because the manager's actions are not described as unrealistic but rather proactive. Choice C, being democratic, is incorrect as it does not relate to the manager's initiative to improve unit operations. Choice D, being authoritarian, is also incorrect as the manager is not described as enforcing changes through strict control and power.
3. The client on warfarin has an INR of 5.5. What is the priority nursing action?
- A. Administer vitamin K as an antidote.
- B. Hold the next dose of warfarin.
- C. Increase the dose of warfarin.
- D. Administer fresh frozen plasma.
Correct answer: A
Rationale: An INR of 5.5 is significantly elevated, indicating an increased risk of bleeding. The priority nursing action in this situation is to administer vitamin K as an antidote to reverse the effects of warfarin and lower the INR. Holding the next dose of warfarin (choice B) is important but not as immediate as administering vitamin K. Increasing the dose of warfarin (choice C) would further elevate the INR, worsening the bleeding risk. Administering fresh frozen plasma (choice D) is not the first-line treatment for high INR due to warfarin.
4. A nurse is planning to administer multiple medications to a client with dysphagia. What action should the nurse take?
- A. Crush medications and mix them with honey
- B. Provide medications through a straw
- C. Place the medications in small amounts of pudding
- D. Offer the medications with a full glass of water
Correct answer: C
Rationale: The correct action for the nurse to take when administering medications to a client with dysphagia is to place the medications in small amounts of pudding. Mixing medications with pudding helps clients with dysphagia swallow them more easily. Choice A (crushing medications and mixing with honey) is not recommended as it may alter the medication properties. Choice B (providing medications through a straw) is not suitable for clients with dysphagia as it can pose a choking hazard. Choice D (offering medications with a full glass of water) may be difficult for clients with dysphagia to swallow and increase the risk of aspiration.
5. What is a condition where the airways become inflamed and narrow, making breathing difficult?
- A. Asthma
- B. Bronchitis
- C. Pleurisy
- D. Tuberculosis
Correct answer: A
Rationale: Asthma is the correct answer. It is a condition characterized by inflammation, narrowing, and swelling of the airways, leading to symptoms like wheezing, shortness of breath, and coughing. Bronchitis is the inflammation of the bronchial tubes; Pleurisy is inflammation of the tissues that line the lungs and chest cavity; Tuberculosis is a bacterial infection that mainly affects the lungs.
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