A client who received 6 units of packed red blood cells 3 days ago for a lower gastrointestinal (GI) bleed is now displaying signs of shortness of breath with occasional stridor and is reporting muscle cramping.
Reference Range:
Potassium [3.5 to 5 mEq/L (3.5 to 5 mmol/L)]
Magnesium [Adult: 1.3 to 2.1 mEq/L (0.65 to 1.05 mmol/L)]
Calcium [9 to 10.5 mg/dL (2.3 to 2.6 mmol/L)]
Sodium (136 to 145 mEq/L (136 to 145 mmol/L)]
Which serum laboratory value should the nurse immediately report to the healthcare provider?
Potassium 4.7 mEq/L (4.70 mmol/L).
Magnesium 2.1 mEq/L (0.86 mmol/L).
Calcium 6.5 mg/dL (1.63 mmol/L).
Sodium 135 mEq/L (135 mmol/L).
The Correct Answer is C
Choice A reason: Potassium 4.7 mEq/L (4.70 mmol/L) is within the normal reference range of 3.5 to 5 mEq/L (3.5 to 5 mmol/L). Potassium is an electrolyte that helps regulate the balance of fluids and acids in the body, as well as the function of nerves and muscles. A high potassium level (hyperkalemia) can cause muscle weakness, irregular heartbeat, and cardiac arrest. A low potassium level (hypokalemia) can cause muscle cramps, fatigue, and arrhythmias.
Choice B reason: Magnesium 2.1 mEq/L (0.86 mmol/L) is within the normal reference range of 1.3 to 2.1 mEq/L (0.65 to 1.05 mmol/L). Magnesium is an electrolyte that helps regulate the activity of enzymes, muscles, and nerves, as well as the balance of calcium and potassium in the body. A high magnesium level (hypermagnesemia) can cause nausea, vomiting, flushing, muscle weakness, and respiratory depression. A low magnesium level (hypomagnesemia) can cause muscle twitching, tremors, seizures, and cardiac arrhythmias.
Choice C reason: Calcium 6.5 mg/dL (1.63 mmol/L) is below the normal reference range of 9 to 10.5 mg/dL (2.3 to 2.6 mmol/L). Calcium is an electrolyte that helps regulate the function of muscles, nerves, bones, and blood clotting. A high calcium level (hypercalcemia) can cause nausea, vomiting, constipation, confusion, kidney stones, and bone pain. A low calcium level (hypocalcemia) can cause muscle spasms, cramps, tingling, numbness, and stridor (a high-pitched sound when breathing). **This is a critical value that should be immediately reported to the healthcare provider**, as it can indicate a serious condition such as acute pancreatitis, sepsis, or massive blood transfusion.
Choice D reason: Sodium 135 mEq/L (135 mmol/L) is slightly below the normal reference range of 136 to 145 mEq/L (136 to 145 mmol/L). Sodium is an electrolyte that helps regulate the balance of fluids and acids in the body, as well as the function of nerves and muscles. A high sodium level (hypernatremia) can cause thirst, dry mouth, confusion, seizures, and coma. A low sodium level (hyponatremia) can cause headache, nausea, vomiting, fatigue, muscle weakness, and confusion.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Sodium polystyrene sulfonate is a medication that binds to excess potassium in the gastrointestinal tract and removes it from the body through feces. It is used to treat hyperkalemia, which is a high level of potassium in the blood. Hyperkalemia can cause cardiac arrhythmias and muscle weakness, and it is a common complication of AKI. Therefore, this medication should be administered first to lower the potassium level and prevent life-threatening complications.
Choice B reason: Sevelamer is a medication that binds to phosphorus in the gastrointestinal tract and removes it from the body through feces. It is used to treat hyperphosphatemia, which is a high level of phosphorus in the blood. Hyperphosphatemia can cause bone loss and soft tissue calcification, and it is a common complication of chronic kidney disease (CKD). However, it is not an urgent issue in AKI, and it does not affect the potassium level.
Choice C reason: Calcium acetate is a medication that also binds to phosphorus in the gastrointestinal tract and removes it from the body through feces. It has the same effect and indication as sevelamer, but it also provides calcium supplementation. However, it is not an urgent issue in AKI, and it does not affect the potassium level.
Choice D reason: Epoetin alfa, recombinant is a medication that stimulates the production of red blood cells in the bone marrow. It is used to treat anemia, which is a low level of hemoglobin or red blood cells in the blood. Anemia can cause fatigue, weakness, and shortness of breath, and it is a common complication of CKD and AKI. However, it is not an urgent issue in AKI, and it does not affect the potassium level.
Correct Answer is B
Explanation
Choice A reason: Obtaining a soft diet for the client is not the best initial nursing action for a client with chemotherapy-induced mucositis who is describing soreness of the tongue and oral issues. A soft diet can help reduce the irritation and discomfort of the oral mucosa, but it does not address the underlying cause of the inflammation and infection. The nurse should first assess the client's oral hygiene and provide appropriate interventions to prevent further complications.
Choice B reason: Encouraging frequent mouth care is the best initial nursing action for a client with chemotherapy-induced mucositis who is describing soreness of the tongue and oral issues. Frequent mouth care can help prevent or reduce the severity of mucositis by removing plaque, bacteria, and debris from the oral cavity, and by moisturizing and soothing the oral tissues. The nurse should instruct the client to use a soft toothbrush, a mild toothpaste, and a saline or bicarbonate rinse at least four times a day, and to avoid alcohol, tobacco, spicy, acidic, or hot foods and beverages.
Choice C reason: Cleansing the tongue and mouth with swabs is not the best initial nursing action for a client with chemotherapy-induced mucositis who is describing soreness of the tongue and oral issues. Swabs can be abrasive and damaging to the oral mucosa, especially if they are dry or contain alcohol or hydrogen peroxide. Swabs can also increase the risk of bleeding, infection, and ulceration of the oral tissues. The nurse should use a soft toothbrush or a gentle sponge to clean the tongue and mouth.
Choice D reason: Administering a topical analgesic per protocol is not the best initial nursing action for a client with chemotherapy-induced mucositis who is describing soreness of the tongue and oral issues. A topical analgesic can provide temporary relief of pain and discomfort, but it does not address the underlying cause of the inflammation and infection. The nurse should first assess the client's oral hygiene and provide appropriate interventions to prevent further complications. The nurse should also monitor the client's response to the analgesic and report any adverse effects or inadequate pain control.
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