ATI RN
RN ATI Capstone Proctored Comprehensive Assessment 2019 B
1. A patient is being treated for dehydration. Which lab result would support the diagnosis?
- A. Elevated hemoglobin
- B. Low sodium level
- C. High white blood cell count
- D. Elevated BUN
Correct answer: D
Rationale: Elevated BUN levels are a characteristic finding in dehydration due to reduced kidney perfusion and increased reabsorption of urea. Hemoglobin levels might be elevated in conditions like polycythemia vera, not directly related to dehydration. A low sodium level could be seen in conditions like hyponatremia. A high white blood cell count is more indicative of infection or inflammation rather than dehydration.
2. A nurse assesses a client who has a mediastinal chest tube. Which symptoms require the nurse's immediate intervention? (Select ONE that does not apply)
- A. Production of pink sputum
- B. Tracheal deviation
- C. Pain at insertion site
- D. Sudden onset of shortness of breath
Correct answer: A
Rationale: In a client with a mediastinal chest tube, the presence of pink sputum does not necessarily require immediate intervention. However, tracheal deviation could indicate a tension pneumothorax, sudden shortness of breath could signal tube issues or pneumothorax, and drainage exceeding 70 mL/hr might suggest hemorrhage. Disconnection at the Y site could lead to air entering the tubing, necessitating prompt attention.
3. The provider orders the client to be placed in a high-Fowler's position. At what angle will the nurse position the client?
- A. 15 degrees
- B. 0 degrees
- C. 90 degrees
- D. 30 degrees
Correct answer: C
Rationale: The correct answer is C: 90 degrees. In a high-Fowler's position, the client's head of the bed is raised to a 90-degree angle. This positioning helps improve breathing and facilitates eating and talking. Choice A, 15 degrees, is incorrect as it is not high enough to be considered a high-Fowler's position. Choice B, 0 degrees, is incorrect as it represents a flat or supine position. Choice D, 30 degrees, is also incorrect as it does not meet the criteria for a high-Fowler's position.
4. A client in labor is receiving oxytocin. Which of the following findings indicates that the nurse should increase the rate of infusion?
- A. Urine output of 20 ml/hr.
- B. Montevideo units constantly at 300 mm Hg.
- C. FHR pattern showing absent variability.
- D. Contractions occurring every 5 minutes and lasting 30 seconds.
Correct answer: Montevideo units constantly at 300 mm Hg.
Rationale: Montevideo units measure the strength and frequency of contractions during labor. A consistent Montevideo units reading of 300 mm Hg or higher is indicative of effective uterine contractions. In this scenario, an increase in the rate of oxytocin infusion may be warranted to further augment contractions and promote progress in labor. The other options, such as low urine output, absent variability in fetal heart rate, and short contractions, do not directly correlate with the need for an increase in oxytocin infusion rate.
5. Which of the following statements describes an active cellular membrane exchange process?
- A. Sodium moving out of cells and potassium moving into cells
- B. The movement of water from an area of low solute concentration to an area of high solute concentration
- C. The movement of insulin using a protein to travel across the cell membrane
- D. Oxygen moving across the pulmonary capillaries to an area of high carbon dioxide
Correct answer: A: Sodium moving out of cells and potassium moving into cells
Rationale: The correct answer is A. In active transport, energy is expended to move substances against their concentration gradient. Sodium moving out of cells and potassium moving into cells is an example of active transport because it requires energy to pump these ions across the cell membrane against their concentration gradients. Choices B, C, and D describe passive processes where substances move along their concentration gradients without the input of energy.
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