Regulation of Electrolytes
Regulation of Electrolytes ( 5 Questions)
A nurse is assessing a client who has hypomagnesemia. Which of the following findings should the nurse expect?
Hypotension is not an expected finding for a client who has hypomagnesemia. Hypotension is more likely to occur with hypovolemia, which is a decrease in the amount of fluid in the blood vessels. Hypomagnesemia is a decrease in the amount of magnesium in the blood, which affects neuromuscular function and can cause muscle spasms, tremors, and seizures.
Bradycardia is not an expected finding for a client who has hypomagnesemia. Bradycardia is a slow heart rate, usually below 60 beats per minute. Hypomagnesemia can cause cardiac arrhythmias, such as tachycardia (fast heart rate), premature ventricular contractions (PVCs), and torsades de pointes (a type of ventricular tachycardia)
Muscle weakness is not an expected finding for a client who has hypomagnesemia. Muscle weakness is more likely to occur with hypermagnesemia, which is an excess of magnesium in the blood. Hypermagnesemia can cause decreased neuromuscular excitability and reduced muscle contraction.
Tetany is an expected finding for a client who has hypomagnesemia. Tetany is a condition characterized by involuntary muscle contractions, often affecting the hands and feet. It is caused by low levels of calcium or magnesium in the blood, which interfere with normal nerve impulses.
Choice A reason:
Hypotension is not an expected finding for a client who has hypomagnesemia. Hypotension is more likely to occur with hypovolemia, which is a decrease in the amount of fluid in the blood vessels. Hypomagnesemia is a decrease in the amount of magnesium in the blood, which affects neuromuscular function and can cause muscle spasms, tremors, and seizures.
Choice B reason:
Bradycardia is not an expected finding for a client who has hypomagnesemia. Bradycardia is a slow heart rate, usually below 60 beats per minute. Hypomagnesemia can cause cardiac arrhythmias, such as tachycardia (fast heart rate), premature ventricular contractions (PVCs), and torsades de pointes (a type of ventricular tachycardia)
Choice C reason:
Muscle weakness is not an expected finding for a client who has hypomagnesemia. Muscle weakness is more likely to occur with hypermagnesemia, which is an excess of magnesium in the blood. Hypermagnesemia can cause decreased neuromuscular excitability and reduced muscle contraction.
Choice D reason:
Tetany is an expected finding for a client who has hypomagnesemia. Tetany is a condition characterized by involuntary muscle contractions, often affecting the hands and feet. It is caused by low levels of calcium or magnesium in the blood, which interfere with normal nerve impulses.