Nokea
What are the expected changes on an ECG for a patient with hypokalemia?
- A. Flattened T waves
- B. Prominent U waves
- C. ST elevation
- D. Wide QRS complexes
Correct Answer: A
Rationale: Flattened T waves are an early sign of hypokalemia on an ECG. Hypokalemia primarily manifests as flattened T waves on an ECG. While prominent U waves can be seen in hypokalemia, they are not as specific as flattened T waves. ST elevation is more commonly associated with conditions like myocardial infarction rather than hypokalemia. Wide QRS complexes are typically not a feature of hypokalemia on an ECG.
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What should a healthcare professional monitor for in a patient with compartment syndrome?
- A. Unrelieved pain, pallor, and pulselessness
- B. Localized redness and swelling
- C. Fever and signs of infection
- D. Loss of deep tendon reflexes
Correct Answer: A
Rationale: Unrelieved pain, pallor, and pulselessness are classic signs of compartment syndrome. In this condition, increased pressure within a muscle compartment impairs blood flow, leading to severe pain that is not relieved by usual measures, pallor from decreased blood flow, and pulselessness due to compromised circulation. These signs indicate a medical emergency requiring immediate intervention. Localized redness and swelling (Choice B) are more characteristic of inflammation or infection rather than compartment syndrome. Fever and signs of infection (Choice C) are not typical manifestations of compartment syndrome. Loss of deep tendon reflexes (Choice D) is associated with conditions affecting the nervous system, not compartment syndrome.
What intervention is needed for continuous bubbling in the chest tube water seal chamber?
- A. Tighten the connections of the chest tube system
- B. Clamp the chest tube
- C. Replace the chest tube system
- D. Continue monitoring the chest tube
Correct Answer: A
Rationale: The correct intervention for continuous bubbling in the chest tube water seal chamber is to tighten the connections of the chest tube system. Continuous bubbling indicates an air leak in the system, and tightening the connections can help resolve this issue. Clamping the chest tube (Choice B) is not appropriate and can lead to complications by obstructing the drainage system. Similarly, replacing the entire chest tube system (Choice C) may not be necessary if the issue can be resolved by tightening the connections. Continuing to monitor the chest tube (Choice D) without taking action to address the continuous bubbling may delay necessary interventions to prevent complications.
What symptoms are associated with a thrombotic stroke?
- A. Gradual loss of function on one side of the body
- B. Sudden loss of consciousness
- C. Loss of motor function with nausea
- D. Severe headache and vomiting
Correct Answer: A
Rationale: A thrombotic stroke presents with a gradual loss of function on one side of the body due to a clot blocking blood flow to the brain. This gradual onset distinguishes it from a hemorrhagic stroke with sudden symptoms like loss of consciousness (Choice B), and from other conditions like migraine, which may present with severe headache and vomiting (Choice D). Nausea (Choice C) is not typically a primary symptom associated with a thrombotic stroke.
What dietary recommendations should be given to a patient with pre-dialysis end-stage kidney disease?
- A. Reduce phosphorus intake to 700 mg/day
- B. Increase sodium intake
- C. Increase protein intake
- D. Increase potassium intake
Correct Answer: A
Rationale: The correct recommendation for a patient with pre-dialysis end-stage kidney disease is to reduce phosphorus intake to 700 mg/day. High phosphorus levels can lead to complications in such patients. Increasing sodium intake (Choice B) is generally not recommended due to its association with hypertension and fluid retention. While protein is essential, increasing protein intake (Choice C) in kidney disease can be harmful as it can lead to increased waste products that the kidneys may struggle to excrete. Increasing potassium intake (Choice D) is not advisable as well, as patients with kidney disease may already have difficulty excreting potassium, leading to hyperkalemia.
What is the priority action for a patient experiencing chest pain from acute coronary syndrome?
- A. Administer sublingual nitroglycerin
- B. Administer aspirin
- C. Obtain IV access
- D. Check cardiac enzymes
Correct Answer: A
Rationale: The correct answer is to administer sublingual nitroglycerin. This medication helps to dilate the blood vessels, reduce the workload on the heart, and improve blood flow to the heart muscle, providing immediate relief for chest pain in acute coronary syndrome. Administering aspirin is also crucial in the early management of acute coronary syndrome to prevent further clot formation. However, in terms of immediate symptom relief, nitroglycerin takes precedence over aspirin. Obtaining IV access is important for administering medications and fluids but is not the priority over providing immediate relief for chest pain. Checking cardiac enzymes is essential for diagnosing acute coronary syndrome but is not the immediate priority when a patient is experiencing chest pain.