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An advantage of peritoneal dialysis is that
- A. peritoneal dialysis is time intensive.
- B. a decreased risk of peritonitis exists.
- C. biochemical disturbances are corrected rapidly.
- D. the danger of hemorrhage is minimal.
Correct Answer: B
Rationale: The correct answer is B: a decreased risk of peritonitis exists. Peritoneal dialysis involves the insertion of a catheter into the peritoneal cavity, which can introduce bacteria and increase the risk of peritonitis. However, compared to hemodialysis, peritoneal dialysis has a lower risk of bloodstream infections and vascular access-related complications, leading to a decreased risk of peritonitis. This advantage makes peritoneal dialysis a favorable option for some patients.
Incorrect choices:
A: peritoneal dialysis is actually less time-intensive compared to hemodialysis.
C: biochemical disturbances are corrected more gradually in peritoneal dialysis.
D: the danger of hemorrhage is not specific to peritoneal dialysis.
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A mode of pressure-targeted ventilation that provides posiatbivirbe. cporme/tsessut re to decrease the workload of spontaneous breathing through what action by the endotracheal tube?
- A. Continuous positive airway pressure
- B. Positive end-expiratory pressure
- C. Pressure support ventilation
- D. T-piece adapter
Correct Answer: C
Rationale: The correct answer is C: Pressure support ventilation. This mode delivers a set pressure to support each spontaneous breath, decreasing the workload of breathing. Pressure support ventilation assists the patient's inspiratory efforts without providing a set tidal volume like in volume-targeted ventilation. Continuous positive airway pressure (Choice A) maintains a constant level of positive pressure throughout the respiratory cycle but does not actively support spontaneous breathing efforts. Positive end-expiratory pressure (Choice B) maintains positive pressure at the end of expiration to prevent alveolar collapse but does not directly support spontaneous breathing. T-piece adapter (Choice D) is a weaning device that allows the patient to breathe spontaneously without ventilatory support.
Which of the following professional organizations best supports critical care nursing practice?
- A. American Association of Critical-Care Nurses
- B. American Heart Association
- C. American Nurses Association
- D. Society of Critical Care Medicine
Correct Answer: A
Rationale: The correct answer is A: American Association of Critical-Care Nurses (AACN). This organization focuses exclusively on critical care nursing, offering specialized education, resources, and certifications for critical care nurses. AACN advocates for high standards of care in critical care settings. The other choices do not specifically cater to critical care nursing practice. The American Heart Association focuses on cardiovascular health, the American Nurses Association is a general nursing organization, and the Society of Critical Care Medicine is more physician-centric. Therefore, A is the best choice for supporting critical care nursing practice.
A patient who has experienced blunt abdominal trauma during a motor vehicle collision is complaining of increasing abdominal pain. The nurse will plan to teach the patient about the purpose of:
- A. Peritoneal lavage.
- B. Abdominal ultrasonography.
- C. Nasogastric (NG) tube placement.
- D. Magnetic resonance imaging (MRI).
Correct Answer: B
Rationale: The correct answer is B: Abdominal ultrasonography. This is because ultrasonography is a non-invasive imaging technique that can quickly evaluate for internal injuries such as organ damage or bleeding in patients with blunt abdominal trauma. It is a rapid and effective diagnostic tool to assess the extent of injury and guide further management.
Peritoneal lavage (A) is an invasive procedure used in trauma settings to detect intra-abdominal bleeding but is not typically used for teaching purposes. Nasogastric tube placement (C) is used for decompression and drainage in certain conditions but is not relevant for assessing abdominal trauma. Magnetic resonance imaging (MRI) (D) is not typically used as the initial imaging modality for acute trauma due to time constraints and its limited availability in emergency settings.
The nurse is preparing to measure the thermodilution cardaiabicrb o.cuomtp/tuest t (TdCO) in a patient being monitored with a pulmonary artery catheter. Which action by the nurse best ensures the safety of the patient?
- A. Ensure the transducer system is zero referenced at the level of the phlebostatic axis.
- B. Avoid infusing vasoactive agents in the port used to ob tain the TdCO measurement.
- C. Maintain a pressure of 300 mm Hg on the flush solutioanbi rub.scionmg/t eas tp ressure bag.
- D. Limit the length of the noncompliant pressure tubing to a maximum 48 inches.
Correct Answer: B
Rationale: The correct answer is B: Avoid infusing vasoactive agents in the port used to obtain the TdCO measurement. This action ensures patient safety by preventing the introduction of vasoactive agents directly into the bloodstream during the measurement process. Infusing vasoactive agents can lead to inaccurate TdCO readings and potentially harm the patient.
Choice A is incorrect because zero referencing the transducer system at the level of the phlebostatic axis is important for accurate pressure monitoring but not directly related to TdCO measurement safety.
Choice C is incorrect as maintaining a pressure of 300 mm Hg on the flush solution bag is not directly related to the safety of TdCO measurement.
Choice D is incorrect as limiting the length of noncompliant pressure tubing is important for accurate pressure readings but not directly related to the safety of TdCO measurement.
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.