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To detect possible complications in a patient with severe cirrhosis who has bleeding esophageal varices, it is most important for the nurse to monitor
- A. bilirubin levels.
- B. ammonia levels.
- C. potassium levels.
- D. prothrombin time.
Correct Answer: B
Rationale: In a patient with severe cirrhosis and bleeding esophageal varices, monitoring ammonia levels is crucial. Severe liver dysfunction impairs the metabolism of protein in the GI tract, leading to increased ammonia levels. Elevated ammonia levels can result in hepatic encephalopathy, a serious complication. Monitoring bilirubin levels is important for assessing liver function and jaundice but may not directly reflect the risk of complications from bleeding esophageal varices. Potassium levels are important but not the most critical in this scenario. Prothrombin time is essential for evaluating coagulation status but does not directly relate to the risk of complications from bleeding esophageal varices in this patient.
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A client with asthma has low-pitched wheezes present in the final half of exhalation. One hour later, the client has high-pitched wheezes extending throughout exhalation. This change in assessment indicates to the nurse that the client:
- A. Has increased airway obstruction.
- B. Has improved airway obstruction.
- C. Needs to be suctioned.
- D. Exhibits hyperventilation.
Correct Answer: B
Rationale: The change from low-pitched wheezes to high-pitched wheezes indicates a shift from larger to smaller airway obstruction, suggesting increased narrowing of the airways. This change signifies a progression or worsening of the airway obstruction. The absence of evidence of secretions does not support the need for suctioning. Hyperventilation is characterized by rapid and deep breathing, which is not indicated by the information provided in the question.
The nurse is caring for a 10-year-old on admission to the burn unit. One assessment
parameter that will indicate that the child has adequate fluid replacement is:
- A. Urinary output of 30 ml per hour
- B. No complaints of thirst
- C. Increased hematocrit
- D. Good skin turgor around burn
Correct Answer: A
Rationale: For a child of this age, this is adequate output, yet does not suggest overload. Disruption
of sodium-ATPase activity presumably causes an intracellular sodium shift which
contributes to hypovolemia and cellular edema. Heat injury also initiates the release of
inflammatory and vasoactive mediators. These mediators are responsible for local
vasoconstriction, systemic vasodilation, and increased transcapillary permeability. Increase
in transcapillary permeability results in a rapid transfer of water, inorganic solutes, and
plasma proteins between the intravascular and interstitial spaces.
A female patient with atrial fibrillation has the following lab results: Hemoglobin of 11 g/dl, a platelet count of 150,000, an INR of 2.5, and potassium of 2.7 mEq/L. Which result is critical and should be reported to the physician immediately?
- A. Hemoglobin of 11 g/dl
- B. Platelet count of 150,000
- C. INR of 2.5
- D. Potassium of 2.7 mEq/L
Correct Answer: D
Rationale: The critical lab result that should be reported to the physician immediately in this case is the potassium level of 2.7 mEq/L. A potassium imbalance, especially in a patient with a history of dysrhythmia like atrial fibrillation, can be life-threatening and lead to cardiac distress. Low potassium levels (hypokalemia) can predispose the patient to dangerous arrhythmias, including worsening atrial fibrillation. Hemoglobin of 11 g/dl, platelet count of 150,000, and an INR of 2.5 are within acceptable ranges and not as immediately concerning as a low potassium level in this clinical context.
The nurse is planning care for a 48-year-old woman with acute severe pancreatitis. The highest priority patient outcome is
- A. maintaining normal respiratory function.
- B. expressing satisfaction with pain control.
- C. developing no ongoing pancreatic disease.
- D. having adequate fluid and electrolyte balance.
Correct Answer: A
Rationale: In acute severe pancreatitis, there is a risk of respiratory failure as a complication, making the maintenance of normal respiratory function the priority outcome. This patient may develop respiratory issues due to the inflammatory process affecting the diaphragm. While pain control, absence of ongoing pancreatic disease, and fluid/electrolyte balance are crucial, they are secondary to ensuring adequate oxygenation and ventilation to prevent respiratory compromise.
Which finding would necessitate an immediate change in the therapeutic plan for a patient with grade 2 hepatic encephalopathy?
- A. Weight loss of 2 lb (1 kg)
- B. Positive urine pregnancy test
- C. Hemoglobin level of 10.4 g/dL
- D. Complaints of nausea and anorexia
Correct Answer: B
Rationale: A positive urine pregnancy test would require an immediate change in the therapeutic plan for a patient with grade 2 hepatic encephalopathy due to the teratogenic effects of ribavirin. Ribavirin needs to be discontinued immediately to prevent harm to the fetus. The other options, weight loss, hemoglobin level, and complaints of nausea and anorexia, are common adverse effects of the prescribed regimen and may necessitate interventions such as patient education or supportive care, but they would not mandate an immediate cessation of therapy as in the case of a positive pregnancy test.