Nokea
What is a characteristic sign of hypokalemia on an ECG?
- A. Flattened T waves
- B. ST elevation
- C. Prominent U waves
- D. Widened QRS complex
Correct Answer: A
Rationale: Flattened T waves are a characteristic sign of hypokalemia on an ECG. When potassium levels are low, it can lead to changes in the ECG, such as T wave flattening. This alteration is important to recognize as it indicates potential electrolyte imbalances. ST elevation (Choice B) is not typically associated with hypokalemia but can be seen in conditions like myocardial infarction. Prominent U waves (Choice C) are associated with hypokalemia, but flattened T waves are more specific. Widened QRS complex (Choice D) is not a typical ECG finding in hypokalemia but can be seen in conditions like hyperkalemia.
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What medication should be given first to a patient experiencing wheezing and coughing due to an allergic reaction?
- A. Albuterol 3 ml via nebulizer
- B. Cromolyn via nebulizer
- C. Aminophylline IV
- D. Methylprednisolone 100 mg IV
Correct Answer: A
Rationale: The correct answer is Albuterol 3 ml via nebulizer. Albuterol is a bronchodilator that helps relieve wheezing and coughing by opening up the airways, making it the first-line treatment for allergic reactions presenting with these symptoms. Cromolyn and aminophylline are not typically used as first-line treatments for acute allergic reactions with wheezing and coughing. Methylprednisolone, a corticosteroid, may be beneficial for inflammation in the setting of an allergic reaction but is not the initial medication of choice to address wheezing and coughing.
What is a typical symptom of a hemorrhagic stroke in a patient?
- A. Sudden, severe headache
- B. Gradual onset of numbness
- C. Loss of consciousness
- D. Loss of speech ability
Correct Answer: A
Rationale: A sudden, severe headache is a common symptom of a hemorrhagic stroke due to brain bleeding. This headache is often described as the worst headache of one's life. Gradual onset of numbness (choice B) is more characteristic of an ischemic stroke, where a blood clot blocks an artery in the brain. Loss of consciousness (choice C) can occur in severe cases of stroke but is not specific to hemorrhagic strokes. Loss of speech ability (choice D) is more associated with ischemic strokes affecting language centers of the brain.
What is the primary nursing action for a patient experiencing continuous bubbling in the chest tube water seal chamber?
- A. Tighten the connections of the chest tube system
- B. Clamp the chest tube
- C. Continue monitoring the chest tube
- D. Replace the chest tube system
Correct Answer: A
Rationale: The correct answer is to tighten the connections of the chest tube system. Continuous bubbling in the chest tube water seal chamber indicates an air leak. By tightening the connections of the chest tube system, the nurse can often resolve the issue by ensuring there are no loose connections allowing air to enter. Clamping the chest tube or replacing the chest tube system are not appropriate actions in this situation. Clamping the tube can cause a dangerous buildup of pressure, while replacing the system should only be considered if tightening the connections does not resolve the air leak.
A nurse is administering insulin to a patient after misreading their glucose as 210 mg/dL instead of 120 mg/dL. What should the nurse monitor for?
- 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. Insulin administration based on a misread glucose level can lead to hypoglycemia due to the unnecessary lowering of blood sugar levels. Monitoring for hypoglycemia involves assessing the patient's blood glucose levels frequently, observing for signs and symptoms such as shakiness, confusion, sweating, and administering glucose if hypoglycemia occurs. Choice B, monitoring for hyperkalemia, is incorrect as insulin administration typically lowers potassium levels. Choice C, administering glucose IV, is not the immediate action needed as the patient could potentially develop hypoglycemia from the excess insulin. Choice D, documenting the incident, is important but not the immediate priority when dealing with a potential hypoglycemic event.
What dietary recommendations should be provided to a patient with GERD?
- A. Avoid mint and spicy foods
- B. Eat large meals before bed
- C. Consume liquids with meals
- D. Avoid foods high in potassium
Correct Answer: A
Rationale: The correct recommendation for a patient with GERD is to avoid mint and spicy foods. These types of foods can trigger acid reflux and worsen GERD symptoms. Choice B is incorrect as eating large meals before bed can increase the likelihood of acid reflux due to increased pressure on the lower esophageal sphincter. Choice C is also incorrect as consuming liquids with meals can cause distension in the stomach, potentially leading to reflux. Choice D is not directly related to GERD, as foods high in potassium are generally healthy and not specifically problematic for GERD patients.