ATI LPN
ATI Learning System PN Medical Surgical Final Quizlet
1. A client is admitted with diabetic ketoacidosis (DKA). Which assessment finding requires immediate intervention?
- A. Fruity breath odor.
- B. Blood glucose of 450 mg/dL.
- C. Deep, rapid respirations.
- D. Serum potassium of 5.2 mEq/L.
Correct answer: C
Rationale: The correct answer is C: Deep, rapid respirations (Kussmaul breathing). This is a sign of severe acidosis commonly seen in diabetic ketoacidosis (DKA) and requires immediate intervention. Kussmaul breathing helps to compensate for the metabolic acidosis by blowing off carbon dioxide. Prompt intervention is necessary to prevent further deterioration and potential respiratory failure. Fruity breath odor (Choice A) is a classic sign of DKA but does not require immediate intervention. While a blood glucose level of 450 mg/dL (Choice B) is high, it does not pose an immediate threat to the client's life. Serum potassium of 5.2 mEq/L (Choice D) is slightly elevated but not the most critical finding that requires immediate intervention in this scenario.
2. A patient with an anxiety disorder is prescribed alprazolam. What is the primary action of this medication?
- A. Increase energy levels
- B. Induce sedation
- C. Elevate mood
- D. Reduce anxiety
Correct answer: D
Rationale: Alprazolam is a benzodiazepine that primarily works by reducing anxiety. It achieves this by enhancing the inhibitory effects of the neurotransmitter GABA in the brain, which leads to a calming effect on the individual. Therefore, the primary action of alprazolam is to decrease anxiety levels rather than increase energy, induce sedation, or elevate mood.
3. A patient with chronic heart failure is prescribed furosemide. What is the primary action of this medication?
- A. Increase cardiac output
- B. Reduce fluid retention
- C. Decrease heart rate
- D. Lower blood pressure
Correct answer: B
Rationale: Furosemide is a loop diuretic that acts by inhibiting sodium and chloride reabsorption in the loop of Henle, leading to increased diuresis. By reducing fluid retention, furosemide helps decrease the workload on the heart in patients with chronic heart failure. This medication does not directly increase cardiac output, decrease heart rate, or lower blood pressure as its primary action.
4. A client with liver failure is at an increased risk of bleeding due to the inability to synthesize prothrombin in the liver. What factor most likely contributes to this loss of function?
- A. Alterations in glucose metabolism
- B. Retention of bile salts
- C. Inadequate production of albumin by hepatocytes
- D. Inability of the liver to use vitamin K
Correct answer: D
Rationale: The correct answer is D. The liver's inability to use vitamin K is the most likely factor contributing to the loss of prothrombin synthesis in liver failure. Vitamin K is essential for the synthesis of prothrombin, a crucial clotting factor. In liver failure, impaired utilization of vitamin K leads to decreased production of prothrombin, increasing the risk of bleeding in affected individuals.
5. The preceptor is orienting a new graduate nurse to the critical care unit. The preceptor asks the new graduate to state symptoms that most likely indicate the beginning of a shock state in a critically ill client. What findings should the new graduate nurse identify?
- A. Warm skin, hypertension, and constricted pupils.
- B. Bradycardia, hypotension, and respiratory acidosis.
- C. Mottled skin, tachypnea, and hyperactive bowel sounds.
- D. Tachycardia, mental status change, and low urine output.
Correct answer: D
Rationale: Tachycardia, mental status change, and low urine output are early indicators of shock. In a critically ill client, these findings suggest a decrease in tissue perfusion. Prompt recognition and intervention are crucial to prevent the progression of shock and its complications.
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