Final answer:
A Serum Mg of 11 mEq/L indicates hypermagnesemia, which could lead to symptoms like lethargy, muscle weakness, and even cardiac arrest due to the disruption of neuromuscular and cardiac functions. Immediate medical intervention is necessary.
Step-by-step explanation:
If a student has a Serum Mg = 11 mEq/L, which is significantly higher than both the normal level of 1.7-2.2 mEq/L and the therapeutic levels of 4-7 mEq/L, it is indicative of hypermagnesemia. This elevated level of magnesium in the blood can lead to several physiologic impairments. Symptoms of severe hypermagnesemia may include lethargy, drowsiness, muscle weakness, difficulty breathing, heart arrhythmias, and cardiac arrest.
The relationship between serum magnesium and calcium is very important, as both are involved in muscle contraction and nerve function. In the presence of high magnesium levels, the interaction with calcium channels could be altered, potentially suppressing neuromuscular function. In severe cases, this imbalance can lead to decreased reflexes, altered mental status, or even respiratory paralysis. The condition requires prompt medical attention and treatment to reduce serum magnesium levels and prevent these serious complications.