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A patient’s ventilator settings are adjusted to treat hypoxemia. The fraction of inspired oxygen is increased from.60 to.70, and the positive end-expiratory pressure is increased from 10 to 15 cm H O. Shortly after these adjustments, the nurse notes that the patient’s blood pressure drops from 120/76 mm Hg to 90/60 mm Hg. What is the m ost likely cause of this decrease in blood pressure?
- A. Decrease in cardiac output
- B. Hypovolemia
- C. Increase in venous return
- D. Oxygen toxicity
Correct Answer: B
Rationale: The correct answer is B: Hypovolemia. When the ventilator settings are adjusted to treat hypoxemia by increasing FiO2 and PEEP, it can lead to increased oxygenation but also potentially decrease venous return to the heart, causing a decrease in blood pressure. This decrease in blood pressure is most likely due to hypovolemia, as the increased PEEP can increase intrathoracic pressure, reducing venous return and preload, leading to a decrease in cardiac output and subsequent decrease in blood pressure. This choice is the most likely cause as the other options (A: Decrease in cardiac output, C: Increase in venous return, D: Oxygen toxicity) do not directly correlate with the changes in ventilator settings described in the question.
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Which statement is consistent with societal views of dying in the United States?
- A. Dying is viewed as a failure on the part of the system and providers.
- B. Most Americans would prefer to die in a hospital to spaabrireb .lcoomve/teds to nes the burden of care.
- C. People die of indistinct, complex illness for which a cu re is always possible.
- D. The purpose of the healthcare system is to prevent dise ase and treat symptoms.
Correct Answer: D
Rationale: Rationale: The correct answer is D because the purpose of the healthcare system in the United States is primarily focused on disease prevention and symptom management. This aligns with societal views as healthcare is geared towards improving health outcomes and quality of life.
Incorrect choices:
A: Dying is not viewed as a failure of the system or providers, rather as a natural part of life.
B: Most Americans prefer to die at home or in hospice care rather than in a hospital.
C: Illnesses are not always curable, and death can result from various complex conditions beyond treatment.
Positive end-expiratory pressure (PEEP) is a mode of ventaiblairbto.croym /atessst istance that produces which of the following conditions
- A. Each time the patient initiates a breath, the ventilator d elivers a full preset tidal volume.
- B. For each spontaneous breath taken by the patient, the tidal volume is determined by the patient’s ability to generate negative pressure.
- C. The patient must have a respiratory drive, or no breaths will be delivered.
- D. There is pressure remaining in the lungs at the end of eaxbiprbi.rcaotmio/tens tt hat is measured in cm H O.
Correct Answer: D
Rationale: The correct answer is D because positive end-expiratory pressure (PEEP) is a mode of ventilation where pressure is maintained in the lungs at the end of expiration. This helps prevent alveolar collapse and improves oxygenation. Option A is incorrect because PEEP does not deliver a full preset tidal volume with each breath initiation. Option B is incorrect because tidal volume in PEEP is not solely determined by the patient's ability to generate negative pressure. Option C is incorrect because in PEEP, breaths are delivered irrespective of the patient's respiratory drive.
What factors are common to both pain and anxiety? (Select all that apply.)
- A. Cyclical exacerbation of one another
- B. Require good nursing assessment for proper treatment
- C. Response only to real phenomena
- D. Perception is majorly influence by previous experience
Correct Answer: A
Rationale: The correct answer is A: Cyclical exacerbation of one another. Pain and anxiety can intensify each other in a cyclical manner. Pain can trigger anxiety, making the pain feel worse, and anxiety can heighten pain perception. This relationship is well-documented in research and clinical practice.
Choice B is incorrect because although both pain and anxiety benefit from thorough nursing assessment, it is not a factor common to both conditions.
Choice C is incorrect as both pain and anxiety can be influenced by real and perceived phenomena, not solely real phenomena.
Choice D is incorrect because while previous experiences can impact pain and anxiety perception, it is not a factor common to both conditions.
The patient has just returned from having an arteriovenous fistula placed. The patient asks, “When will they be able to use this and take this other catheter out?” The nurse should reply,
- A. “It can be used immediately, so the catheter can come out anytime.”
- B. “It will take 2 to 4 weeks to heal before it can be used.”
- C. “The fistula will be usable in about 4 to 6 weeks.”
- D. “The fistula was made using graft material, so it depends on the manufacturer.”
Correct Answer: C
Rationale: The correct answer is C: “The fistula will be usable in about 4 to 6 weeks.” The rationale for this is that an arteriovenous fistula typically requires 4 to 6 weeks to mature and be ready for use. During this time, the fistula develops the necessary blood flow for efficient dialysis.
Choice A is incorrect because immediate use of the fistula is not recommended as it needs time to mature. Choice B is incorrect as it underestimates the time needed for the fistula to heal and mature. Choice D is incorrect as the usability of the fistula is not dependent on the manufacturer but rather on the patient's individual healing process.
A hospice patient is manifesting a decrease in all body system functions except for a heart rate of 124 and a respiratory rate of 28. Which statement, if made by the nurse to the patient’s family member, is most appropriate?
- A. These symptoms will continue to increase until death finally occurs.
- B. These symptoms are a normal response before these functions decrease.
- C. These symptoms indicate a reflex response to the slowing of other body systems.
- D. These symptoms may be associated with an improvement in the patient’s condition.
Correct Answer: B
Rationale: The correct answer is B because an increase in heart rate and respiratory rate can be a normal response before body system functions decrease in a hospice patient. This is known as a compensatory mechanism as the body tries to maintain oxygenation. Choice A is incorrect because symptoms may not always continue to increase until death. Choice C is incorrect as it implies a reflex response, which may not be the case. Choice D is incorrect as an improvement in the patient's condition is unlikely in a hospice setting.