a nurse is caring for a client who has just had a central venous access line inserted which action should the nurse take next
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Nursing Elites

ATI RN

ATI Fluid Electrolyte and Acid-Base Regulation

1. A nurse is caring for a client who has just had a central venous access line inserted. Which action should the nurse take next?

Correct answer: B

Rationale:

2. .A nurse assesses a clients peripheral IV site, and notices edema and tenderness above the site. Which action should the nurse take next?

Correct answer: D

Rationale:

3. A nurse admitting a patient with a history of emphysema reviews her past lab reports and notes that the patient's PaCO2 has been 56 to 64 mmHg. The nurse will be cautious administering oxygen because:

Correct answer: D

Rationale: When PaCO2 chronically exceeds 50 mm Hg, it creates insensitivity to CO2 in the respiratory medulla, and the use of oxygen may result in the patient developing carbon dioxide narcosis and hypoxemia. Choice A is incorrect because administering oxygen does not lead to a dramatic rise in calcium due to pituitary stimulation. Choice B is incorrect because administering oxygen does not directly increase intracranial pressure or create confusion. Choice C is incorrect because administering oxygen to a patient with emphysema and high PaCO2 levels is more likely to cause respiratory depression than hyperventilation and acidosis.

4. While assessing clients on a medical-surgical unit, which client is at risk for hypokalemia?

Correct answer: A

Rationale: Continuous nasogastric suctioning can lead to hypokalemia due to the loss of gastric contents rich in potassium. Therefore, a client with pancreatitis who has continuous nasogastric suctioning is at risk for hypokalemia. Option B is incorrect because ACE inhibitors may lead to hyperkalemia, not hypokalemia. Option C is incorrect as receiving packed red blood cells can lead to hyperkalemia due to the potassium content in the blood product. Option D is incorrect because a serum pH level of 7.33 indicates acidosis, which is not directly associated with hypokalemia.

5. A 73-year-old man who slipped on a small carpet in his home and fell on his hip is alert and oriented; PERRLA (pupils equally round and reactive to light and accommodation) is intact, and he has come by ambulance to the emergency department (ED). Heart rate elevated, he is anxious and thirsty. A Foley catheter is in place and 40mL of urine is present. The nurse's most likely explanation for the urine output is:

Correct answer: D

Rationale: Renin is released by the juxtaglomerular cells of the kidneys in response to decreased renal perfusion. Angiotensin-converting enzyme converts angiotensin I to angiotensin II. Angiotensin II, with its vasoconstrictor properties, increases arterial perfusion pressure and stimulates thirst. As the sympathetic nervous system is stimulated, aldosterone is released in response to an increased release of renin, which decreases urine production. Based on the nursing assessment and mechanism of injury, this is the most likely cause of the lower urine output. Choices A, B, and C are incorrect because there is no indication of urination prior to arrival, brain injury, lack of ADH, or heart failure present in the scenario provided. The symptoms and context described point more towards a physiological response related to the sympathetic nervous system and the renin-angiotensin-aldosterone system rather than the other conditions mentioned.

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