Nokea
What are the manifestations of osteomyelitis?
- A. Localized pain, swelling, erythema
- B. Elevated white blood cells
- C. Elevated calcium levels
- D. Low potassium levels
Correct Answer: A
Rationale: Osteomyelitis often manifests as localized pain, swelling, and erythema due to infection in the bone. These symptoms are characteristic of inflammation and infection in the bone tissue. Elevated white blood cells (Choice B) may be present as part of the body's immune response to the infection but are not specific manifestations of osteomyelitis. Elevated calcium levels (Choice C) and low potassium levels (Choice D) are not typically associated with osteomyelitis.
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A nurse misreads a glucose level and administers insulin for a blood glucose of 210 mg/dL instead of 120 mg/dL. What is the priority intervention?
- A. Monitor for hypoglycemia
- B. Monitor for hyperkalemia
- C. Administer glucose IV
- D. Document the incident
Correct Answer: A
Rationale: The correct answer is to monitor for hypoglycemia. In this scenario, the nurse administered insulin based on a misread glucose level, which could lead to hypoglycemia due to excessive insulin action lowering blood glucose levels. Monitoring for hypoglycemia allows for prompt recognition and intervention if blood glucose levels drop significantly. Choice B, monitoring for hyperkalemia, is incorrect as administering insulin would not cause hyperkalemia. Choice C, administering glucose IV, is not appropriate at this time since the patient's blood glucose level is already elevated. Choice D, documenting the incident, is important but not the priority at this moment when patient safety is at risk due to potential hypoglycemia.
A patient with a new diagnosis of diabetes insipidus is planning care. What should be included in the plan of care?
- A. Avoid alcohol
- B. Increase exercise to reduce stress
- C. Increase fluid intake
- D. Restrict sodium intake
Correct Answer: A
Rationale: The correct answer is to avoid alcohol. In diabetes insipidus, excessive urination leads to fluid loss, so it is essential to avoid alcohol which can exacerbate dehydration. Choice B is incorrect as increasing exercise may not directly impact diabetes insipidus. Choice C is also incorrect because although increasing fluid intake may seem intuitive, it is not the primary concern in managing diabetes insipidus. Choice D is not directly related to managing diabetes insipidus; sodium restriction is more relevant in conditions like hypertension or heart failure.
What ECG changes are expected in hypokalemia?
- A. Flattened T waves on ECG
- B. Prominent U waves on ECG
- C. Widened QRS complexes on ECG
- D. ST elevation on ECG
Correct Answer: A
Rationale: In hypokalemia, flattened T waves are a common ECG finding due to the decreased extracellular potassium affecting repolarization. Prominent U waves are typically seen in hypokalemia as well, but flattened T waves are the more specific and early ECG change. Widened QRS complexes are associated with hyperkalemia, not hypokalemia. ST elevation is often seen in conditions like myocardial infarction, pericarditis, or early repolarization syndrome, not specifically in hypokalemia.
A patient with a chest tube has continuous bubbling in the water seal chamber. What does this indicate?
- A. An air leak
- B. A blocked chest tube
- C. Drainage from the site
- D. Blood clot in the chest tube
Correct Answer: A
Rationale: Continuous bubbling in the water seal chamber of a chest tube indicates an air leak. This situation requires immediate attention to prevent complications such as lung collapse. A blocked chest tube would typically result in absent or fluctuating bubbling. Drainage from the site would be observed in the collection chamber, not the water seal chamber. A blood clot in the chest tube would lead to cessation of drainage.
What are the expected signs in a patient with compartment syndrome?
- A. Unrelieved pain, pallor, and pulselessness
- B. Fever and infection
- C. Localized redness and swelling
- D. Loss of sensation in the affected area
Correct Answer: A
Rationale: In a patient with compartment syndrome, the classic signs include unrelieved pain, pallor, and pulselessness. These signs indicate compromised circulation and neurovascular function in the affected compartment. Fever and infection (Choice B) are not typical signs of compartment syndrome. Localized redness and swelling (Choice C) can be seen in other conditions like cellulitis but are not specific to compartment syndrome. Loss of sensation in the affected area (Choice D) may occur in some cases but is not as specific or consistent as unrelieved pain, pallor, and pulselessness in diagnosing compartment syndrome.