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A patient with respiratory failure has arterial pressure-based cardiac output (APCO) monitoring and is receiving mechanical ventilation with peak end-expiratory pressure (PEEP) of 12 cm H2O. Which information indicates that a change in the ventilator settings may be required?
- A. The arterial pressure is 90/46.
- B. The heart rate is 58 beats/minute.
- C. The stroke volume is increased.
- D. The stroke volume variation is 12%.
Correct Answer: A
Rationale: The correct answer is A. A decrease in the arterial pressure (hypotension) with a low diastolic pressure (46 mmHg) may indicate inadequate perfusion, possibly due to inadequate cardiac output from the mechanical ventilation. This suggests that a change in ventilator settings may be required to improve oxygenation and perfusion.
Option B is incorrect because a heart rate of 58 beats/minute alone does not provide direct information on the patient's hemodynamic status. Option C is incorrect as an increased stroke volume would usually be a positive indicator; it does not necessarily indicate a need for changing the ventilator settings. Option D is incorrect as a stroke volume variation of 12% is within normal limits and does not necessarily require a change in ventilator settings.
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The nurse is caring for a critically ill trauma patient who is expected to be hospitalized for an extended period of time. Which of the following nursing interventions would improve the patient’s well-being and reduce anxiety the most?
- A. Arrange for the patient’s dog to be brought into the unit (per protocol).
- B. Contact the pet therapy department to bring a therapy d og in to visit.
- C. Secure the harpist to come and play soothing music fora bairnb. choomu/tre set very afternoon.
- D. Wheel the patient out near the unit aquarium to observ e the tropical fish.
Correct Answer: B
Rationale: The correct answer is B because pet therapy has been shown to reduce anxiety and improve well-being in hospitalized patients. Interacting with therapy dogs can provide comfort, companionship, and a distraction from the hospital environment. Bringing in a therapy dog can help the trauma patient feel more relaxed and supported during their extended hospital stay.
Choice A may be comforting but does not address the therapeutic benefits of pet therapy. Choice C may provide soothing music, but pet therapy has been specifically proven to reduce anxiety in patients. Choice D, observing fish in an aquarium, may be calming but does not involve the interactive benefits of pet therapy.
When assisting with the placement of a pulmonary artery (PA) catheter, the nurse notes that the catheter is correctly placed when the monitor shows a:
- A. Typical PA pressure waveform.
- B. Tracing of the systemic arterial pressure.
- C. Tracing of the systemic vascular resistance.
- D. Typical PA wedge pressure (PAWP) tracing.
Correct Answer: D
Rationale: Step-by-step rationale for Answer D being correct:
1. PA catheter measures PA pressures.
2. PAWP reflects left atrial pressure.
3. Correct placement shows typical PAWP tracing.
4. PA pressure waveform (A) is not specific to PAWP.
5. Systemic arterial pressure tracing (B) is unrelated.
6. Systemic vascular resistance tracing (C) is not monitored by PA catheter.
assessment, the patient is restless, heart rate has increased to 110 beats/min, respirat ions are 36 breaths/min, and blood pressure is 156/98 mm Hg. The cardiac monitor shows sin us tachycardia with 10 premature ventricular contractions (PVCs) per minute. Pulmonary artery pressures are elevated. The nurse suctions the patient and obtains pink, frothy secretio ns. Loud crackles are audible throughout lung fields. The nurse notifies the physician, who orders an ABG analysis, electrolyte levels, and a portable chest x-ray study. In comambirubn.ciocma/tteinstg with the physician, which statement indicates the nurse understands what is likely occurring with the patient?
- A. “May we have an order for cardiac enzymes? This pati ent is exhibiting signs of a myocardial infarction.”
- B. “My assessment indicates potential fluid overload.”
- C. “The patient is having frequent PVCs that are comprom ising the cardiac output.”
- D. “The patient is having a hypertensive crisis; what medications would you like to order?”
Correct Answer: B
Rationale: The correct answer is B: “My assessment indicates potential fluid overload.” The patient is showing signs of fluid overload, such as increased heart rate, respiratory rate, elevated blood pressure, pulmonary artery pressures, frothy secretions, and crackles in lung fields. These symptoms suggest fluid is accumulating in the lungs, causing pulmonary congestion. This can lead to impaired gas exchange and respiratory distress. The nurse's recognition of these signs is crucial for prompt intervention to prevent further complications. Other choices are incorrect because there are no indications of a myocardial infarction, PVCs compromising cardiac output, or a hypertensive crisis based on the given information.
An unresponsive 79-year-old is admitted to the emergency department (ED) during a summer heat wave. The patient’s core temperature is 105.4°F (40.8°C), blood pressure (BP) 88/50, and pulse 112. The nurse initially will plan to:
- A. Apply wet sheets and a fan to the patient.
- B. Provide O2 at 6 L/min with a nasal cannula.
- C. Start lactated Ringer's solution at 1000 mL/hr.
- D. Give acetaminophen (Tylenol) rectal suppository.
Correct Answer: A
Rationale: The correct answer is A: Apply wet sheets and a fan to the patient. This is the initial treatment for hyperthermia to aid in lowering the body temperature. Wet sheets help in evaporative cooling, while a fan enhances heat loss through convection. This approach is crucial in managing heat-related illnesses quickly. Choices B, C, and D are incorrect as they do not directly address the urgent need to reduce the patient's elevated core temperature. Providing O2, IV fluids, or acetaminophen can be considered later in the management, but the priority is to rapidly lower the body temperature in a hyperthermic patient to prevent further complications.
Following surgery for an abdominal aortic aneurysm, the patient’s central venous pressure (CVP) monitor indicates low pressures. Which action is a priority for the nurse to take?
- A. Administer IV diuretic medications.
- B. Increase the IV fluid infusion per protocol.
- C. Document the CVP and continue to monitor.
- D. Elevate the head of the patient's bed to 45 degrees.
Correct Answer: B
Rationale: The correct answer is B: Increase the IV fluid infusion per protocol. Low CVP post-abdominal aortic aneurysm surgery could indicate hypovolemia, which requires fluid resuscitation. Increasing IV fluid infusion helps restore intravascular volume, improve tissue perfusion, and prevent hypotension. Administering diuretics (A) would worsen hypovolemia. Documenting (C) is important but not the priority when the patient needs immediate intervention. Elevating the head of the bed (D) may help with venous return but is not the priority over addressing hypovolemia.