ATI Fluid Electrolyte and Acid-Base Regulation

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ATI Fluid Electrolyte and Acid-Base Regulation Questions

Question 1 of 5

You are caring for a patient who is being treated on the oncology unit with a diagnosis of lung cancer with bone metastases. During your assessment, you note the patient complains of a new onset of weakness with abdominal pain. Further assessment suggests that the patient likely has a fluid volume deficit. You should recognize that this patient may be experiencing what electrolyte imbalance?

Correct Answer: D

Rationale: The correct answer is D: Hypercalcemia. Bone metastases in lung cancer can lead to increased release of calcium into the blood, causing hypercalcemia. The patient's symptoms of weakness and abdominal pain are consistent with hypercalcemia. Hypernatremia (choice A) is unlikely as the symptoms do not align with high sodium levels. Hypomagnesemia (choice B) and hypophosphatemia (choice C) are less likely as they are not typically associated with bone metastases in lung cancer. In summary, the patient's presentation of weakness and abdominal pain in the setting of lung cancer with bone metastases points to hypercalcemia as the most likely electrolyte imbalance.

Question 2 of 5

A nurse is caring for a client with a peripheral vascular access device who is experiencing pain, redness, and swelling at the site. After removing the device, which action should the nurse take to relieve pain?

Correct Answer: B

Rationale: The correct answer is B: Place warm compresses on the site. Warm compresses can help increase blood flow, reduce pain, and promote healing at the site of inflammation. The warmth can help dilate blood vessels, increasing circulation to the area and promoting the removal of inflammatory substances. This can help alleviate pain and reduce swelling. Administering topical lidocaine (choice A) may not address the underlying cause of pain and redness. Administering oral pain medication (choice C) may be necessary for severe pain but may not directly address the local inflammation. Massaging the site with scented oils (choice D) can potentially introduce more irritants and should be avoided in cases of inflammation.

Question 3 of 5

A nurse is caring for an older adult client who is admitted with moderate dehydration. Which intervention should the nurse implement to prevent injury while in the hospital?

Correct Answer: D

Rationale: The correct answer is D because dangling the client on the bedside before ambulating helps prevent orthostatic hypotension and potential falls. This step allows the nurse to assess the client's tolerance to changes in position and reduces the risk of injury. A: Asking family members to speak quietly does not directly address the prevention of injury related to dehydration. B: Assessing urine parameters is important for monitoring hydration status but does not directly prevent injury. C: Encouraging fluid intake is important for rehydration but does not directly address the risk of injury during ambulation.

Question 4 of 5

A patient has questioned the nurses administration of IV normal saline, asking whether sterile water would be a more appropriate choice than saltwater. Under what circumstances would the nurse administer electrolyte-free water intravenously?

Correct Answer: A

Rationale: The correct answer is A because electrolyte-free water, such as sterile water, can rapidly enter red blood cells due to osmotic differences, causing them to swell and potentially rupture, leading to hemolysis. This can result in severe harm to the patient. Choice B is incorrect because electrolyte-free water is not indicated for severely dehydrated patients with neurologic signs and symptoms. They require electrolytes to correct their imbalances. Choice C is incorrect as administering electrolyte-free water would not address excess calcium and/or magnesium ions in the body. Specific treatments for hypercalcemia or hypermagnesemia are needed. Choice D is incorrect because patients with fluid deficits due to renal failure require electrolyte-balanced solutions to manage their condition effectively. Electrolyte-free water would not address the electrolyte imbalances associated with renal failure.

Question 5 of 5

The nurse in the medical ICU is caring for a patient who is in respiratory acidosis due to inadequate ventilation. What diagnosis could the patient have that could cause inadequate ventilation?

Correct Answer: C

Rationale: Rationale: Guillain-Barr syndrome can cause inadequate ventilation due to paralysis of the respiratory muscles. This results in respiratory acidosis. Endocarditis, multiple myeloma, and amphetamine overdose do not directly affect ventilation. Endocarditis is an infection of the heart valves, multiple myeloma is a cancer of plasma cells, and amphetamine overdose primarily affects the central nervous system and cardiovascular system, not ventilation. Therefore, Guillain-Barr syndrome is the most likely diagnosis in this case.

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