Nokea
What ECG changes are associated with hyperkalemia?
- A. Flattened T waves
- B. ST depression
- C. Prominent U waves
- D. Elevated ST segments
Correct Answer: B
Rationale: Hyperkalemia is known to cause ST depression on an ECG. Flattened T waves are more commonly seen in hypokalemia. Prominent U waves are associated with hypokalemia rather than hyperkalemia. Elevated ST segments are not typical findings in hyperkalemia.
You may also like to solve these questions
What are the signs and symptoms of a hemorrhagic stroke?
- A. Sudden severe headache, decreased level of consciousness, and seizures
- B. Loss of consciousness and weakness
- C. Temporary vision loss
- D. Severe chest pain and shortness of breath
Correct Answer: A
Rationale: The correct answer is A. A hemorrhagic stroke often presents with a sudden severe headache, decreased level of consciousness, and seizures due to bleeding in the brain. Choice B, loss of consciousness and weakness, is more indicative of an ischemic stroke where a clot blocks blood flow to the brain. Choice C, temporary vision loss, is more commonly seen in conditions like transient ischemic attacks (TIAs) or retinal migraines. Choice D, severe chest pain and shortness of breath, are symptoms more associated with cardiac issues like a heart attack.
What is the first medication to give for wheezing due to an allergic reaction?
- A. Albuterol via nebulizer
- B. Cromolyn 20 mg via nebulizer
- C. Methylprednisolone 100 mg IV
- D. Aminophylline 500 mg IV
Correct Answer: A
Rationale: Albuterol is the first-line medication for treating wheezing due to an allergic reaction. Albuterol is a short-acting beta-agonist that helps relieve bronchospasm quickly. Cromolyn is more commonly used for the prevention of asthma symptoms rather than for acute treatment. Methylprednisolone and aminophylline are not the first-line medications for acute wheezing due to an allergic reaction.
What ECG changes are expected in a patient with hypokalemia?
- A. Flattened T waves
- B. Prominent U waves
- C. Widened QRS complexes
- D. Tall T waves
Correct Answer: A
Rationale: Flattened T waves are an early indicator of hypokalemia on an ECG. Hypokalemia primarily presents with flattened T waves, not prominent U waves, widened QRS complexes, or tall T waves. Prominent U waves are associated with hypokalemia only in severe cases. Widened QRS complexes are more indicative of hyperkalemia, while tall T waves are seen in hyperkalemia as well.
What should be monitored in a patient receiving insulin who is at risk for hypoglycemia?
- A. Monitor blood glucose levels
- B. Monitor for respiratory distress
- C. Monitor for hypertension
- D. Monitor for hyperkalemia
Correct Answer: A
Rationale: Corrected Question: In a patient receiving insulin who is at risk for hypoglycemia, monitoring blood glucose levels is crucial. This helps in preventing and identifying hypoglycemia promptly. Choice B, monitoring for respiratory distress, is not directly related to hypoglycemia caused by insulin. Choice C, monitoring for hypertension, is not typically associated with hypoglycemia. Choice D, monitoring for hyperkalemia, is not a common concern in patients receiving insulin who are at risk for hypoglycemia.
What dietary recommendations should be given to a patient with GERD?
- A. Avoid mint and spicy foods
- B. Eat large meals before bed
- C. Increase fluid intake during meals
- D. Drink milk as a snack
Correct Answer: A
Rationale: The correct dietary recommendation for a patient with GERD is to avoid mint and spicy foods. These foods can trigger symptoms of GERD and lead to acid reflux. Choice B is incorrect because eating large meals before bed can exacerbate GERD symptoms by increasing the likelihood of acid reflux during sleep. Choice C is incorrect as increasing fluid intake during meals can worsen GERD symptoms by distending the stomach, leading to increased pressure on the lower esophageal sphincter. Choice D is also incorrect because while milk may provide temporary relief for some individuals, it is not a recommended long-term solution for managing GERD.