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What ECG changes are seen with hyperkalemia?
- A. Flattened T waves
- B. Elevated ST segments
- C. Prominent U waves
- D. Widened QRS complex
Correct Answer: A
Rationale: Flattened T waves are an early ECG sign of hyperkalemia. Hyperkalemia affects the repolarization phase of the cardiac action potential, leading to changes such as peaked T waves, prolonged PR interval, widened QRS complex, and ultimately sine wave pattern. Elevated ST segments, prominent U waves, and widened QRS complex are not typically associated with hyperkalemia, making choices B, C, and D incorrect.
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What is the first action a healthcare provider should take for a patient with possible acute coronary syndrome?
- A. Administer sublingual nitroglycerin
- B. Get IV access
- C. Auscultate heart sounds
- D. Obtain cardiac enzymes
Correct Answer: A
Rationale: Administering sublingual nitroglycerin is the initial priority action for a patient with possible acute coronary syndrome. Nitroglycerin helps dilate blood vessels, reduce chest pain, and improve blood flow to the heart muscle. This helps in relieving symptoms and preventing further damage to the heart. Establishing IV access, auscultating heart sounds, and obtaining cardiac enzymes are important steps in the assessment and management of acute coronary syndrome but are not the first actions to be taken. IV access may be needed for administering medications or fluids, auscultating heart sounds helps in assessing the heart's function, and obtaining cardiac enzymes aids in diagnosing a heart attack.
What dietary recommendation should be given to a patient with GERD?
- A. Avoid mint and spicy foods
- B. Eat large meals before bedtime
- C. Consume liquids with meals
- D. Eat three large meals per day
Correct Answer: A
Rationale: The correct recommendation for a patient with GERD is to avoid mint and spicy foods. Mint and spicy foods can aggravate GERD symptoms by relaxing the lower esophageal sphincter and increasing stomach acid production, leading to acid reflux. Choices B, C, and D are incorrect. Eating large meals before bedtime can worsen GERD symptoms as lying down can promote acid reflux. Consuming liquids with meals can also exacerbate GERD by increasing stomach distension and pressure on the lower esophageal sphincter. Eating three large meals per day can overload the stomach and trigger acid reflux episodes in patients with GERD.
What are the expected symptoms in a patient with compartment syndrome?
- A. Unrelieved pain, pallor, and pulselessness
- B. Localized swelling and redness
- C. Fever and swelling
- D. Weakness and fatigue
Correct Answer: A
Rationale: The correct answer is A: Unrelieved pain, pallor, and pulselessness. These symptoms are classic signs of compartment syndrome, which is a serious condition characterized by reduced circulation in a closed muscle compartment. The pain is typically severe and disproportionate to the injury, and if left untreated, it can lead to tissue damage and loss of function. Choices B, C, and D are incorrect because they do not represent the hallmark symptoms of compartment syndrome. Localized swelling and redness may be present but are not specific to this condition. Fever and swelling are more indicative of inflammation or infection, while weakness and fatigue are nonspecific and do not typically occur in isolation in compartment syndrome.
What is an escharotomy and why is it performed?
- A. A surgical incision made to improve circulation in burn injuries
- B. A procedure to remove dead tissue from a wound
- C. A procedure to remove excess fluid from the lungs
- D. A procedure to relieve pain from burns
Correct Answer: A
Rationale: An escharotomy is a surgical procedure involving an incision through the eschar (dead tissue) to relieve pressure in burn injuries. It is performed to improve circulation to the affected area, prevent further damage, and restore blood flow. Choice B is incorrect because an escharotomy is not primarily focused on removing dead tissue but rather on relieving pressure. Choice C is incorrect as it describes a procedure related to pulmonary issues, not burn injuries. Choice D is incorrect because while pain relief may be a result of an escharotomy, it is not the primary purpose of the procedure.
What is the priority intervention when a patient experiences abdominal cramping during enema administration?
- A. Lower the height of the enema solution container
- B. Stop the procedure and remove the tubing
- C. Continue the enema at a slower rate
- D. Increase the flow of the enema solution
Correct Answer: A
Rationale: The correct answer is to lower the height of the enema solution container. This action can help relieve abdominal cramping by slowing the flow of the enema, reducing discomfort for the patient. Choice B, stopping the procedure and removing the tubing, is not the priority as adjusting the height of the container can often resolve the issue without needing to stop the procedure completely. Choice C, continuing the enema at a slower rate, may not address the immediate discomfort experienced by the patient. Choice D, increasing the flow of the enema solution, can exacerbate the cramping and should be avoided.