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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.
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Continuous renal replacement therapy (CRRT) differs from conventional intermittent hemodialysis in that
- A. a hemofilter is used to facilitate ultrafiltration.
- B. it provides faster removal of solute and water.
- C. it does not allow diffusion to occur.
- D. the process removes solutes and water slowly.
Correct Answer: D
Rationale: The correct answer is D because CRRT removes solutes and water slowly, which is beneficial for hemodynamically unstable patients. This slow removal allows for gradual fluid and electrolyte balance adjustments, reducing the risk of hemodynamic instability.
A: Incorrect - A hemofilter is indeed used in CRRT, but this choice does not highlight the key difference between CRRT and intermittent hemodialysis.
B: Incorrect - CRRT actually provides slower solute and water removal compared to intermittent hemodialysis.
C: Incorrect - Diffusion does occur in CRRT, as it is a key mechanism for solute removal in the process.
In summary, the key difference between CRRT and intermittent hemodialysis is the slow removal of solutes and water in CRRT, making choice D the correct answer.
A 28-year-old patient who has deep human bite wounds on the left hand is being treated in the urgent care center. Which action will the nurse plan to take?
- A. Prepare to administer rabies immune globulin (BayRab).
- B. Assist the health care provider with suturing the bite wounds.
- C. Teach the patient the reason for the use of prophylactic antibiotics.
- D. Keep the wounds dry until the health care provider can assess them.
Correct Answer: C
Rationale: The correct answer is C: Teach the patient the reason for the use of prophylactic antibiotics. This is the most important action because human bites can introduce harmful bacteria into the wound, leading to infection. Prophylactic antibiotics help prevent infection in deep human bite wounds.
Choice A is incorrect because rabies immune globulin is not indicated for human bite wounds. Choice B is incorrect because suturing human bite wounds can trap bacteria and increase the risk of infection. Choice D is incorrect because keeping the wounds dry is not sufficient; proper wound cleaning and antibiotic treatment are essential in this case.
A patient is being mechanically ventilated in the synchronized intermittent mandatory ventilation mode at a rate of 4 breaths/min. Spontaneous re spirations are 12 breaths/min. The patient receives a dose of morphine sulfate, and now respi rations decrease to 4 breaths/min. What adjustments may need to be made to the patient’s ve ntilator settings?
- A. Add positive end-expiratory pressure (PEEP).
- B. Add pressure support.
- C. Change to assist/control ventilation at a rate of 4 breathabsi/rmb.cionm. /test
- D. Increase the synchronized intermittent mandatory ventilation respiratory rate.
Correct Answer: C
Rationale: The correct answer is C: Change to assist/control ventilation at a rate of 4 breaths/min. When the patient's spontaneous respirations decrease to match the ventilator rate, it indicates that the patient is not actively participating in breathing. Changing to assist/control ventilation allows the patient to trigger breaths when they desire, ensuring a more synchronized and comfortable breathing pattern.
A: Adding PEEP may help improve oxygenation but is not directly related to the issue of decreased spontaneous respirations.
B: Adding pressure support provides additional support during inspiration but does not address the underlying issue of decreased spontaneous respirations.
D: Increasing the SIMV respiratory rate would not address the patient's decreased spontaneous respirations and could potentially lead to overventilation.
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.
One of the strategies shown to reduce perception of stress in critically ill patients and their families is support of spirituality. What nursing action is most clearly supportive of the patients spirituality?
- A. Referring patients to the Catholic chaplain
- B. Providing prayer booklets to patients and families
- C. Asking about beliefs about the universe
- D. Avoiding discussing religion with those of other faiths
Correct Answer: C
Rationale: The correct answer is C because asking about beliefs about the universe allows the nurse to understand the patient's spiritual needs and provide appropriate support. This action shows respect for the patient's beliefs and can help establish a connection between the patient and the nurse. Referring patients to a specific religious figure (choice A) may not align with the patient's beliefs. Providing prayer booklets (choice B) assumes the patient's belief system and may not be helpful. Avoiding discussing religion (choice D) can hinder the nurse-patient relationship and overlook potential sources of support for the patient.