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The term used to describe an increase in blood urea nitrogen (BUN) and serum creatinine is
- A. oliguria.
- B. azotemia.
- C. acute kidney injury.
- D. prerenal disease.
Correct Answer: B
Rationale: The correct answer is B: azotemia. Azotemia refers to an increase in BUN and serum creatinine levels, indicating impaired kidney function. Oliguria (A) is a decrease in urine output, not specific to BUN and creatinine levels. Acute kidney injury (C) is a broader term encompassing various causes of kidney dysfunction, not specific to elevated BUN and creatinine. Prerenal disease (D) refers to conditions affecting blood flow to the kidneys, not directly related to elevated BUN and creatinine levels.
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The nurse is concerned that the patient will pull out the en dotracheal tube. As part of the nursing management, the nurse should obtain an order for what intervention?
- A. A Posey-type vest
- B. A higher dosage of lorazepam
- C. Propofol
- D. Soft wrist restraints
Correct Answer: A
Rationale: The correct answer is A. A Posey-type vest is a restraint designed to prevent patients from pulling out medical devices like endotracheal tubes, ensuring their safety. It is a less restrictive option compared to wrist restraints and sedatives (B and C), which can have adverse effects and may not directly address the concern of tube removal. Using a Posey-type vest promotes patient autonomy by allowing some movement while still providing the necessary protection.
The charge nurse is supervising the care of four critical ca re patients being monitored using invasive hemodynamic modalities. Which patient should t he charge nurse evaluate first?
- A. A patient in cardiogenic shock with a cardiac output (CabOirb). coofm 2/te.0st L/min
- B. A patient with a pulmonary artery systolic pressure (PA P) of 20 mm Hg
- C. A hypovolemic patient with a central venous pressure (CVP) of 6 mm Hg
- D. A patient with a pulmonary artery occlusion pressure (PAOP) of 10 mm Hg
Correct Answer: A
Rationale: The correct answer is A because the patient in cardiogenic shock with a cardiac output of 2.0 L/min is experiencing a life-threatening condition that requires immediate evaluation. Cardiogenic shock indicates poor cardiac function, which can lead to multi-organ failure. Monitoring cardiac output is crucial in managing these patients.
Choice B is incorrect because a pulmonary artery systolic pressure of 20 mm Hg is within normal range and does not indicate an immediate life-threatening condition.
Choice C is incorrect because a CVP of 6 mm Hg in a hypovolemic patient may indicate volume depletion, but it is not as urgent as the patient in cardiogenic shock.
Choice D is incorrect because a PAOP of 10 mm Hg is within normal range and does not suggest an immediate critical condition.
The nurse recommends that the family of a critically ill patient seek help from the Critical Care Family Assistance Program. What benefit for the family does the nurse anticipate?
- A. Reduction of health care cost
- B. More physical comfort
- C. Multidisciplinary support
- D. Health promotion information
Correct Answer: C
Rationale: The correct answer is C: Multidisciplinary support. The Critical Care Family Assistance Program offers a range of professionals such as social workers, counselors, and financial advisors to provide holistic support to the family. This helps address emotional, financial, and practical needs during a challenging time. Option A is incorrect because the program does not directly reduce healthcare costs. Option B is incorrect as the focus is not solely on physical comfort but on comprehensive support. Option D is incorrect as the primary aim is not health promotion but rather addressing the family's immediate concerns and needs.
The intensive care unit (ICU) nurse educator will determine that teaching arterial pressure monitoring to staff nurses has been effective when the nurse:
- A. Balances and calibrates the monitoring equipment every 2 hours.
- B. Positions the zero-reference stopcock line level with the hemostatic axis.
- C. Ensures that the patient is supine with the head of the bed flat for all readings.
- D. Rechecks the location of the hemostatic axis when changing the patient’s position.
Correct Answer: B
Rationale: The correct answer is B because positioning the zero-reference stopcock line level with the hemostatic axis ensures accurate arterial pressure monitoring. Placing the stopcock at the hemostatic axis allows for correct measurement of blood pressure without any errors due to height differences. This positioning helps in obtaining precise and reliable readings.
A: Balancing and calibrating the monitoring equipment every 2 hours is important for equipment maintenance but does not directly impact the accuracy of arterial pressure monitoring.
C: Ensuring the patient is supine with the head of the bed flat is a standard position for arterial pressure monitoring but does not specifically address the correct positioning of the stopcock.
D: Rechecking the location of the hemostatic axis when changing the patient's position is essential for maintaining accuracy, but it does not directly relate to the initial correct positioning of the stopcock.
Which acid-base disturbances commonly occurs with the hyperventilation and impaired gas exchange seen in severe exacerbation of asthma?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct Answer: D
Rationale: The correct answer is D: Respiratory alkalosis. Hyperventilation in severe asthma exacerbation leads to excessive removal of CO2, causing a decrease in carbonic acid levels, resulting in respiratory alkalosis. Metabolic acidosis (A) is not typically associated with hyperventilation. Metabolic alkalosis (B) is caused by excessive loss of acid or gain of bicarbonate, not by hyperventilation. Respiratory acidosis (C) is characterized by an increase in CO2 levels due to inadequate ventilation, which is the opposite of what occurs in severe asthma exacerbation.