. A patient with central diabetes insipidus is being treated with desmopressin (DDAVP) and fluid replacement. Which of the following lab values should the nurse monitor closely?
Serum sodium levels
Serum magnesium levels
Serum potassium levels
Serum calcium levels
The Correct Answer is A
A. Serum sodium levels: Desmopressin can lead to water retention and potentially hyponatremia. Monitoring serum sodium is crucial to prevent electrolyte imbalance.
B. Serum magnesium levels: Magnesium is not typically impacted by desmopressin treatment in central diabetes insipidus.
C. Serum potassium levels: Desmopressin does not generally affect potassium levels in patients with diabetes insipidus.
D. Serum calcium levels: Calcium levels are not directly influenced by desmopressin or diabetes insipidus.
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Correct Answer is D
Explanation
A. Mild wheezing: Mild wheezing can be a common symptom in COPD and does not immediately indicate a severe complication unless it worsens suddenly.
B. Fatigue and general malaise: Fatigue and malaise are often chronic in COPD and do not necessarily indicate an acute complication.
C. Increased sputum production: While increased sputum could suggest an infection, it is not the most urgent sign of a severe complication.
D. Sudden onset chest pain and dyspnea: Sudden chest pain and dyspnea are concerning for a pneumothorax or pulmonary embolism, both of which are potential complications in COPD and require immediate attention.
Correct Answer is B
Explanation
A. Inflammation of the motor cortex leads to decreased coordination and balance. Parkinson’s disease is not caused by inflammation in the motor cortex; it primarily involves the loss of dopamine-producing neurons.
B. Degeneration of dopamine-producing neurons in the substantia nigra of the brain leads to motor dysfunction. Parkinson’s disease is caused by the degeneration of dopamine-producing neurons in the substantia nigra, leading to motor symptoms such as tremors, rigidity, and bradykinesia.
C. A loss of acetylcholine in the brain leads to memory problems and cognitive decline. While a loss of acetylcholine is associated with Alzheimer’s disease, it is not the primary issue in Parkinson’s disease.
D. Excess production of dopamine in the basal ganglia leads to tremors and muscle rigidity. In Parkinson’s disease, there is a decrease, not an excess, in dopamine production, which contributes to motor symptoms.