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A 53-year-old, 80-kg patient is admitted to the cardiac sur gical intensive care unit after cardiac surgery with the following arterial blood gas (ABG ) levels. What is the nurse’s interpretation of these values? pH 7.4 PaCO 40 mm Hg Bicarbonate 24 mEq/L PaO 95 mm Hg O saturation 97% Respirations 20 breaths per minute
- A. Compensated metabolic acidosis
- B. Metabolic alkalosis
- C. Normal ABG values
- D. Respiratory acidosis
Correct Answer: C
Rationale: The correct interpretation is C: Normal ABG values.
1. pH is within the normal range of 7.35-7.45.
2. PaCO2 is 40 mm Hg, within the normal range of 35-45 mm Hg.
3. Bicarbonate is 24 mEq/L, within the normal range of 22-26 mEq/L.
4. PaO2 is 95 mm Hg, within the normal range of 80-100 mm Hg.
5. Oxygen saturation is 97%, which is normal.
6. Respirations are also within the normal range at 20 breaths per minute.
Overall, all values fall within the normal range, indicating a well-maintained acid-base balance. Other choices are incorrect because there are no abnormalities that would suggest compensated metabolic acidosis, metabolic alkalosis, or respiratory acidosis based on the given ABG values.
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The nurse is caring for a patient who is orally intubated and on a mechanical ventilator. The nurse believes that the patient is experiencing excess anxiety. For this patient, what behavior best indicates anxiety?
- A. Restlessness
- B. Verbalization
- C. Increased respiratory rate
- D. Glasgow Coma Scale score of 3
Correct Answer: A
Rationale: The correct answer is A: Restlessness. Restlessness is a common behavioral indicator of anxiety in patients. In this scenario, a patient who is orally intubated and on a ventilator may not be able to verbally express anxiety, making restlessness a more prominent sign. Verbalization may not be possible due to intubation. While increased respiratory rate can be a symptom of anxiety, it is also a common physiological response in patients on mechanical ventilation. A Glasgow Coma Scale score of 3 indicates severe impairment of consciousness, not specifically anxiety.
The nurse is caring for a client who is unable to void. The plan of care establishes an objective for the client to ingest at least 1000 mL of fluid between 7:00 am and 3:30 pm. Which client response should the nurse document that indicates a successful outcome?
- A. Demonstrates adequate fluid intake and output.
- B. Verbalizes abdominal comfort without pressure.
- C. Drinks 240 mL of fluid five times during the shift.
- D. Voids at least 1000 mL between 7 am and 3 pm.
Correct Answer: C
Rationale: Step 1: The objective is for the client to ingest at least 1000 mL of fluid between 7:00 am and 3:30 pm.
Step 2: Choice C states that the client drinks 240 mL of fluid five times during the shift, totaling 1200 mL (240 mL x 5) which exceeds the required amount.
Step 3: Therefore, choice C is the correct answer as it demonstrates successful achievement of the objective by ensuring the client has ingested enough fluid within the specified time frame.
Step 4: Choices A, B, and D are incorrect as they do not directly address the specific objective of fluid intake set for the client. Option A focuses on intake and output, option B relates to abdominal comfort, and option D is about voiding, none of which directly address the specified objective of fluid ingestion.
Gastric lavage and administration of activated charcoal are ordered for an unconscious patient who has been admitted to the emergency department (ED) after ingesting 30 lorazepam (Ativan) tablets. Which action should the nurse plan to do first?
- A. Insert a large-bore orogastric tube.
- B. Assist with the intubation of the patient.
- C. Prepare a 60-mL syringe with saline.
- D. Give the first dose of activated charcoal.
Correct Answer: B
Rationale: The correct answer is B: Assist with the intubation of the patient. In this scenario, the patient is unconscious and has ingested a potentially harmful substance. Intubation is the first priority to maintain the patient's airway and ensure adequate oxygenation. This step is crucial in preventing aspiration of gastric contents and securing the patient's respiratory status. Inserting a large-bore orogastric tube (choice A) is not the priority as airway management takes precedence. Preparing a syringe with saline (choice C) is unnecessary at this stage. Giving the first dose of activated charcoal (choice D) should only be done after securing the airway to prevent aspiration.
Warning signs that can assist the critical care nurse in reco gnizing that an ethical dilemma may exist include which of the following? (Select all that apply.)
- A. Family members are confused about what is happening to the patient.
- B. Family members are in conflict as to the best treatmen t options. They disagree with each other and cannot come to consensus.
- C. The family asks that the patient not be told of treatmenatb iprbl.aconms./t est
- D. The patient’s condition has changed dramatically for the worse and is not responding to conventional treatment.
Correct Answer: A
Rationale: The correct answer is A because when family members are confused about the patient's condition or treatment, it can indicate a lack of communication or understanding, leading to a potential ethical dilemma. This confusion may result in conflicting views on what is best for the patient, potentially leading to disagreements and ethical conflicts.
Choice B is incorrect because although family conflict can lead to ethical dilemmas, it is not a direct warning sign that an ethical dilemma exists.
Choice C is incorrect because the family asking not to inform the patient about treatment is more related to communication preferences rather than a clear indication of an ethical dilemma.
Choice D is incorrect because a deteriorating patient condition, while concerning, does not directly signal an ethical dilemma unless there are specific ethical considerations involved in the treatment decisions.
A young man has just arrived at the ICU from out of town and received news that his girlfriend, who is admitted there, likely only has a few days left to live. Which of the following would be the best approach for the nurse to take in caring for the needs of this young man?
- A. Recommending that he go home and rest
- B. Giving him unrestricted visiting hours with the patient
- C. Suggesting that he meet with the hospital chaplain
- D. Recommending that he ask the doctor to evaluate the patients pain control measures
Correct Answer: C
Rationale: The correct answer is C: Suggesting that he meet with the hospital chaplain. This approach is best as it addresses the young man's emotional and spiritual needs during a difficult time. The chaplain can provide comfort, support, and guidance in coping with his girlfriend's situation. This option focuses on holistic care and acknowledges the importance of emotional well-being.
A: Recommending that he go home and rest is not the best approach as it dismisses the young man's emotional distress.
B: Giving him unrestricted visiting hours with the patient may not be appropriate as it can be overwhelming and may not address his emotional needs effectively.
D: Recommending that he ask the doctor to evaluate the patient's pain control measures is important but does not directly address the young man's emotional needs in this situation.