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Which statement about resuscitation is true?
- A. Family members should never be present during resusc itation.
- B. It is not necessary for a physician to write “do not resu scitate” orders in the chart if a patient has a healthcare surrogate.
- C. “Slow codes” are ethical and should be considered in f utile situations if advanced directives are not available.
- D. Withholding “extraordinary” resuscitation is legal anda ebtirhbi.ccoaml /tiefs ts pecified in advance directives and physician orders.
Correct Answer: D
Rationale: The correct answer is D because it accurately states that withholding "extraordinary" resuscitation is legal and should be based on specified criteria in advance directives and physician orders. This is in line with medical ethics and patient autonomy.
A is incorrect because family presence during resuscitation can be beneficial for emotional support and decision-making. B is incorrect as it is still necessary for a physician to document "do not resuscitate" orders even with a healthcare surrogate. C is incorrect as "slow codes" are not ethical and go against the principle of beneficence.
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The urgent care center protocol for tick bites includes the following actions. Which action will the nurse take first when caring for a patient with a tick bite?
- A. Use tweezers to remove any remaining ticks.
- B. Check the vital signs, including temperature.
- C. Give doxycycline (Vibramycin) 100 mg orally.
- D. Obtain information about recent outdoor activities.
Correct Answer: A
Rationale: The correct answer is A: Use tweezers to remove any remaining ticks. The first step is to remove the tick to prevent further transmission of any potential pathogens. This is crucial in preventing tick-borne illnesses. Checking vital signs (B) can be done after the tick is removed. Administering doxycycline (C) should be based on guidelines and individual factors. Obtaining information about recent outdoor activities (D) is important but not the immediate priority.
Following insertion of a pulmonary artery catheter (PAC),a bthirbe. cpohmy/tessitc ian orders the nurse to obtain a blood sample for mixed venous oxygen saturation (SvO ). Which action by the nurse best ensures the obtained value is accurate?
- A. Zero referencing the transducer at the level of the phlebostatic axis following insertion WWWWWW ..TTHHEENNUURRSSIINNGGMMAASSTTEERRYY..CCOOMM
- B. Calibrating the system with a central venous blood sample and arterial blood gas value
- C. Ensuring patency of the catheter using a 0.9% normal asbailrbin.ceo ms/otelsut tion pressurized at 300 mm Hg
- D. Using noncompliant pressure tubing that is no longer t han 36 to 48 inches and has minimal stopcocks
Correct Answer: B
Rationale: The correct answer is B because calibrating the system with central venous and arterial blood samples ensures accuracy of the mixed venous oxygen saturation (SvO2) measurement. This calibration allows for comparison of the values obtained from both sources to confirm the accuracy of the measurement.
Choice A is incorrect because zero referencing the transducer at the level of the phlebostatic axis does not directly address the accuracy of the SvO2 measurement.
Choice C is incorrect because ensuring patency of the catheter using normal saline pressurized at 300 mm Hg does not directly impact the accuracy of the SvO2 measurement.
Choice D is incorrect because using noncompliant pressure tubing does not ensure the accuracy of the SvO2 measurement. The length of the tubing and the presence of stopcocks are not directly related to obtaining an accurate SvO2 value.
What is the most common cause of a pulmonary embolus?
- A. An amniotic fluid embolus.
- B. A deep vein thrombosis from lower extremities.
- C. A fat embolus from a long bone fracture.
- D. Vegetation that dislodges from an infected central venous catheter.
Correct Answer: B
Rationale: The correct answer is B: A deep vein thrombosis from lower extremities. Deep vein thrombosis (DVT) is the most common cause of a pulmonary embolus as a blood clot can dislodge from the veins, travel to the lungs, and block blood flow. An amniotic fluid embolus (Choice A) occurs during childbirth and is rare as a cause of pulmonary embolism. A fat embolus (Choice C) typically occurs after a long bone fracture and is more likely to cause issues in the lungs. Vegetation from an infected central venous catheter (Choice D) can cause septic pulmonary embolism, but it is not as common as DVT.
The nurse is preparing to provide postmortem care for a patient who has just died. Which action should the nurse take first?
- A. Close the patient’s eyes and place a pillow under the head.
- B. Wash the patient’s body and apply a clean gown.
- C. Remove all medical equipment and tubes.
- D. Confirm that a death certificate has been signed.
Correct Answer: A
Rationale: Rationale:
A: Closing the patient's eyes and placing a pillow under the head is the first step in postmortem care to maintain dignity and prevent airway occlusion.
B: Washing the body and changing clothes can be done later and is not the priority.
C: Removing medical equipment can wait until after ensuring the patient's comfort.
D: Confirming the death certificate is important but not the immediate first step in postmortem care.
The critical care environment is often stressful to a criticalalbyir bil.clo pma/tteiset nt. Identify stressors that are commonly stressful for the critically ill patient. (Select all that apply.)
- A. Alarms that sound from various devices
- B. Bright, fluorescent lighting
- C. Lack of day-night cues
- D. Sounds from the mechanical ventilator
Correct Answer: A
Rationale: The correct answer is A: Alarms that sound from various devices. In the critical care environment, alarms often indicate changes in the patient's condition, causing stress. Bright fluorescent lighting (B) may be bothersome but not directly related to patient stress. Lack of day-night cues (C) may disrupt sleep patterns but is not a direct stressor. Sounds from the mechanical ventilator (D) are essential for patient care and not inherently stressful.