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Choice A is wrong because quinidine does not cause hypertension (high blood pressure). In fact, quinidine can lower blood pressure by dilating blood vessels and reducing the force of heart contractions. Normal blood pressure ranges are less than 120/80 mm Hg for systolic and diastolic pressures, respectively.

Choice B is wrong because quinidine does not cause hypoglycemia (low blood glucose levels). Quinidine does not affect insulin secretion or glucose metabolism. Normal blood glucose ranges are 70 to 99 mg/dL (3.9 to 5.5 mmol/L) before meals and less than 140 mg/dL (7.8 mmol/L) two hours after meals.

Choice D is wrong because quinidine does not cause hypernatremia (high sodium levels). Quinidine does not affect sodium balance or excretion. Sodium is another electrolyte that is important for fluid balance, nerve impulses, and muscle contractions. Hypernatremia can cause thirst, confusion, seizures, and coma. Normal sodium ranges are 135 to 145 mEq/L (135 to 145 mmol/L).

Choice B is wrong because “My mouth feels dry” is wrong because dry mouth is not a typical side effect of lidocaine. Dry mouth can be caused by dehydration, medications, salivary gland problems, or other medical conditions.

Choice C is wrong because “My urine is dark” is wrong because dark urine is not a common side effect of lidocaine. Dark urine can be a sign of dehydration, liver problems, blood in the urine, or other health issues. Normal urine color ranges from clear to pale yellow.

Choice D is wrong because “I have a headache” is wrong because headache is not a usual side effect of lidocaine. Headache can be caused by many factors, such as stress, lack of sleep, dehydration, or other medical conditions.

Choice B is wrong because sleeping on the left side may not be enough to improve breathing. It may also cause more pressure on the heart and lungs, which can affect blood circulation and oxygen delivery.

Choice C is wrong because sleeping on the right side may not be helpful for breathing either. Some research suggests that sleeping on the right side can make breathing more difficult for some people with obstructive sleep apnea.

Choice D is wrong because sleeping on the back can increase snoring, sleep apnea, and reflux symptoms, which can all interfere with breathing. Sleeping on the back can also cause the tongue and soft palate to block the airway, reducing oxygen intake.

Choice A is wrong because verapamil does not cause hypertension, but rather lowers blood pressure. In fact, verapamil can sometimes cause hypotension, which is abnormally low blood pressure.

Choice B is wrong because verapamil does not cause hyperkalemia, which is a high level of potassium in the blood. Verapamil can actually lower potassium levels by increasing its excretion in the urine. Hyperkalemia can be caused by other medications, such as angiotensin-converting enzyme (ACE) inhibitors, angiotensin receptor blockers (ARBs), or potassium-sparing diuretics.

Choice C is wrong because verapamil does not cause hypoglycemia, which is a low level of glucose in the blood. Verapamil does not affect insulin secretion or glucose metabolism. Hypoglycemia can be caused by other medications, such as insulin or sulfonylureas, or by fasting, alcohol consumption, or exercise.