ATI RN
ATI Maternal Newborn Proctored Exam
1. A healthcare professional is reviewing the laboratory values of a client who has respiratory acidosis. Which of the following findings should the healthcare professional expect?
- A. HCO3- 30 mEq/L
- B. PaCO2 50 mm Hg
- C. pH 7.45
- D. Potassium 3.3 mEq/L
Correct answer: PaCO2 50 mm Hg
Rationale: In respiratory acidosis, the primary disturbance is an increase in PaCO2 levels above the normal range of 35-45 mm Hg. Option B, PaCO2 50 mm Hg, indicates an elevated partial pressure of carbon dioxide, which is consistent with respiratory acidosis. Options A, C, and D are not directly indicative of respiratory acidosis. HCO3- (Option A) is more related to metabolic acidosis or alkalosis, pH (Option C) is within the normal range indicating no acid-base imbalance, and potassium (Option D) levels are not specific to respiratory acidosis.
2. When educating a parent of an infant with a new prescription for digoxin, which instruction should the nurse provide?
- A. Repeat the dose if the infant vomits.
- B. Mix the medication with food.
- C. Give the medication with meals.
- D. Monitor the infant's heart rate prior to administering the medication.
Correct answer: D
Rationale: The correct answer is D: 'Monitor the infant's heart rate prior to administering the medication.' It is crucial for the nurse to monitor the infant's heart rate before giving digoxin to identify any signs of digoxin toxicity early. Heart rate assessment helps in detecting and preventing potential complications associated with digoxin use. Choices A, B, and C are incorrect. Repeating the dose if the infant vomits can lead to overdose, mixing the medication with food may alter its absorption, and giving the medication with meals can affect its effectiveness. Therefore, the priority is to monitor the infant's heart rate to ensure safe administration of digoxin.
3. What is the appropriate electrical intervention for a patient with ventricular tachycardia and a pulse?
- A. Defibrillation
- B. Synchronized cardioversion
- C. Pacing
- D. Medication administration
Correct answer: B
Rationale: Synchronized cardioversion is the correct electrical intervention for a patient with ventricular tachycardia and a pulse. This procedure delivers a synchronized electrical shock to the heart during a specific phase of the cardiac cycle, aiming to restore the heart's normal rhythm. Defibrillation (choice A) is used for pulseless ventricular tachycardia or ventricular fibrillation. Pacing (choice C) is typically used for bradycardias or certain types of heart blocks. Medication administration (choice D) may be used in some cases, but in the scenario of ventricular tachycardia with a pulse, synchronized cardioversion is the preferred intervention.
4. When reviewing the prescriptions for a client with a pneumothorax, which of the following actions should the nurse perform first?
- A. Assess the client's pain.
- B. Obtain a large-bore IV needle for decompression.
- C. Administer lorazepam.
- D. Prepare for chest tube insertion.
Correct answer: Obtain a large-bore IV needle for decompression.
Rationale: In a client with a pneumothorax, the priority action for the nurse is to obtain a large-bore IV needle for decompression. This intervention helps to relieve the pressure in the pleural space, allowing the lung to re-expand. Prompt decompression is crucial in managing a tension pneumothorax, which can be life-threatening. Assessing pain, administering medication, and preparing for chest tube insertion are important, but they should follow the immediate intervention of decompression in a critical situation like a tension pneumothorax.
5. Which electrolyte imbalance is commonly seen in patients taking furosemide?
- A. Hypokalemia
- B. Hyponatremia
- C. Hyperkalemia
- D. Hypercalcemia
Correct answer: A
Rationale: The correct answer is A: Hypokalemia. Furosemide, a loop diuretic, can lead to potassium loss in the urine, resulting in hypokalemia. This electrolyte imbalance is commonly seen in patients taking furosemide and requires close monitoring. Choices B, C, and D are incorrect because furosemide does not typically cause hyponatremia, hyperkalemia, or hypercalcemia as frequently as it causes hypokalemia.
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