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 C
Explanation
Choice A reason: An abdominal catheter is used for peritoneal dialysis, not hemodialysis. Hemodialysis requires access to a large blood vessel, usually in the arm or leg.
Choice B reason: Routine medications may need to be adjusted or avoided before or after hemodialysis, depending on their effects on blood pressure, fluid balance, and electrolytes.
Choice C reason: Insulin dosage may need to be reduced during hemodialysis because insulin is removed by the dialyzer and blood glucose levels may drop. This is the correct statement to include in client education.
Choice D reason: Potassium-rich foods should be limited in the diet of clients with chronic kidney disease and hemodialysis, because potassium can build up in the blood and cause cardiac arrhythmias.
Correct Answer is D
Explanation
Choice A reason: Jogging or running are not excellent aerobic exercises for an older adult client with osteoarthritis. These activities can put a lot of stress and impact on the joints, especially the knees, hips, and ankles, which can worsen the pain and inflammation of osteoarthritis. The nurse should advise the client to avoid high-impact exercises that can damage the cartilage and bones.
Choice B reason: Tennis or racquetball are not ideal exercises for an older adult client with osteoarthritis. These activities involve sudden movements, twists, and turns that can strain the joints, especially the elbows, wrists, and shoulders, which can aggravate the symptoms of osteoarthritis. The nurse should advise the client to avoid exercises that can cause joint instability and injury.
Choice C reason: Limiting the exercise to just the daily activities is not a good advice for an older adult client with osteoarthritis. Exercise is important for maintaining joint health, mobility, and function, as well as preventing muscle loss, obesity, and cardiovascular diseases. The nurse should encourage the client to engage in regular moderate exercise that can improve the quality of life and reduce the complications of osteoarthritis.
Choice D reason: Swimming is an excellent exercise for an older adult client with osteoarthritis. Swimming is a low-impact aerobic exercise that can strengthen the muscles, improve the cardiovascular fitness, and enhance the flexibility of the joints without putting too much pressure or stress on them. Swimming can also reduce the pain and stiffness of osteoarthritis by providing a soothing and relaxing effect on the body. The nurse should recommend swimming as a safe and effective exercise for the client.
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