Magnesium toxicity can cause which change in urine output?

Magnesium toxicity can cause which change in urine output?

• A. Increased Urine Output
• B. Normal Urine Output
• C. Decreased Urine Output
• D. No Urine Change

Answer: (C)

When magnesium levels become toxic, the body’s neuromuscular and cardiovascular systems are depressed, and this can reduce blood flow to the kidneys. The resulting decreased renal perfusion lowers the glomerular filtration rate, so less urine is produced. That’s why decreased urine output is the expected change with magnesium toxicity. Increased urine output isn’t typical, and either normal or no change in output would not reflect the systemic depressant effects seen with hypermagnesemia.

When magnesium levels become toxic, the body’s neuromuscular and cardiovascular systems are depressed, and this can reduce blood flow to the kidneys. The resulting decreased renal perfusion lowers the glomerular filtration rate, so less urine is produced. That’s why decreased urine output is the expected change with magnesium toxicity. Increased urine output isn’t typical, and either normal or no change in output would not reflect the systemic depressant effects seen with hypermagnesemia.