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What are the diagnostic criteria for acute respiratory distress syndrome (ARDS)? (Select all that apply.)
- A. Bilateral infiltrates on chest x-ray study
- B. Decreased cardiac output
- C. PaO /FiO ratio of less than 200 2 2
- D. Pulmonary artery occlusion pressure (PAOP) of more than 18 mm Hg
Correct Answer: A
Rationale: The correct answer is A: Bilateral infiltrates on chest x-ray study. ARDS diagnosis requires bilateral infiltrates on chest x-ray, indicative of non-cardiogenic pulmonary edema. Choice B, decreased cardiac output, is not a diagnostic criterion for ARDS. Choice C, PaO2/FiO2 ratio of less than 200, is a key diagnostic criteria for ARDS, indicating severe hypoxemia. Choice D, PAOP of more than 18 mm Hg, is used to differentiate between cardiogenic and non-cardiogenic causes of pulmonary edema, but it is not a direct diagnostic criterion for ARDS.
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The family members of a critically ill, 90-year-old patient bring in a copy of the patient’s living will to the hospital, which identifies the patient’s wiasbhireb.sc orme/gteasrt ding health care. The nurse discusses the contents of the living will with the patient’s physician. This is an example of implementation of which of the AACN Standards of Pr ofessional Performance?
- A. Acquires and maintains current knowledge of practice
- B. Acts ethically on the behalf of the patient and family
- C. Considers factors related to safe patient care
- D. Uses clinical inquiry and integrates research findings i n practice
Correct Answer: C
Rationale: The correct answer is C: Considers factors related to safe patient care. The scenario involves the nurse discussing the patient's living will with the physician, which is essential for ensuring safe patient care by following the patient's preferences. This aligns with the AACN standard of considering factors related to safe patient care, as the nurse is actively involving all relevant parties in decision-making to provide care that is in line with the patient's wishes.
Explanation of why other choices are incorrect:
A: Acquires and maintains current knowledge of practice - While important, this choice does not directly relate to the scenario where the focus is on safe patient care through communication and collaboration.
B: Acts ethically on behalf of the patient and family - While ethics are important, the scenario is more about following the patient's wishes as outlined in the living will rather than making ethical decisions.
D: Uses clinical inquiry and integrates research findings in practice - While valuable in nursing practice, this choice does not directly apply to the scenario where
A patient’s status deteriorates and mechanical ventilation i s now required. The pulmonologist wants the patient to receive 10 breaths/min from the ventilaabtirobr.c bomu/tt ewst ants to encourage the patient to breathe spontaneously in between the mechanical breaths at his own tidal volume. This mode of ventilation is referred to by what term?
- A. Assist/control ventilation
- B. Controlled ventilation
- C. Intermittent mandatory ventilation
- D. Positive end-expiratory pressure
Correct Answer: C
Rationale: Rationale:
1. Intermittent Mandatory Ventilation (IMV) allows the patient to breathe spontaneously between the preset mechanical breaths.
2. It provides a set number of breaths per minute while allowing the patient to initiate additional breaths at their own tidal volume.
3. IMV is a partial ventilatory support mode, providing a balance between controlled and spontaneous breathing.
4. Assist/Control Ventilation (A) provides full support with every breath initiated by the patient or the ventilator.
5. Controlled Ventilation (B) does not allow for spontaneous breaths by the patient.
6. Positive End-Expiratory Pressure (D) is a separate mode focusing on maintaining positive pressure at the end of expiration, not providing breaths.
The American Association of Critical-Care Nurses (AACN) sponsors certification in critical care nursing for several critical care subspecialties. What is the most important benefit of such certification for the profession of nursing?
- A. Provides positive publicity for nursing
- B. Validates nurses expert knowledge and practice
- C. Mandated by government regulations
- D. Demonstrates basic knowledge in the field
Correct Answer: B
Rationale: The correct answer is B because certification validates nurses' expert knowledge and practice. This is important as it ensures that nurses have the necessary skills and competence to provide high-quality care in critical care settings. Certification is voluntary and not mandated by government regulations (Choice C). It goes beyond demonstrating basic knowledge (Choice D) by confirming specialized expertise. While certification may garner positive publicity (Choice A), the primary benefit is the validation of advanced skills and knowledge.
A client with asthma receives a prescription for high blood pressure during a clinic visit. Which prescription should the nurse anticipate the client to receive that is least likely to exacerbate asthma?
- A. Carteolol (Ocupress)
- B. Propranolol hydrochloride (Inderal)
- C. Pindolol (Visken)
- D. Metoprolol tartrate (Lopressor)
Correct Answer: D
Rationale: The correct answer is D, Metoprolol tartrate (Lopressor). Metoprolol is a cardioselective beta-blocker that primarily targets beta-1 receptors in the heart, making it less likely to exacerbate asthma compared to non-selective beta-blockers like Propranolol (choice B) and Pindolol (choice C). Carteolol (choice A) is also a non-selective beta-blocker and can potentially worsen asthma symptoms. Metoprolol's selectivity for beta-1 receptors minimizes bronchoconstriction, making it the safest choice for a client with asthma and high blood pressure.
A patient in hospice care is experiencing dyspnea. What is the most appropriate nursing intervention?
- A. Position the patient flat on their back.
- B. Administer oxygen as prescribed.
- C. Restrict fluid intake to reduce congestion.
- D. Perform chest physiotherapy to improve breathing.
Correct Answer: B
Rationale: The correct answer is B: Administer oxygen as prescribed. Dyspnea in a hospice patient often indicates respiratory distress, and administering oxygen can help improve oxygenation and alleviate breathing difficulty. Positioning the patient flat on their back (A) may worsen dyspnea due to increased pressure on the diaphragm. Restricting fluid intake (C) is not appropriate as dehydration can exacerbate respiratory distress. Chest physiotherapy (D) may not be suitable for a hospice patient experiencing dyspnea as it can be physically taxing and may not address the underlying cause effectively.