The doctor orders Pepcid 10 mg by mouth three times a day. Instructions on the container say to reconstitute with water to make a concentration of 0.5 g/3 mL. How many ml/dose would you administer?

A) Naloxone (Narcan):
Naloxone is the antidote for opioid overdose, not for digoxin toxicity. It works by reversing the effects of opioid drugs such as morphine, heroin, and oxycodone by binding to opioid receptors in the brain. While Naloxone is vital in opioid toxicity, it has no effect on the toxicity of digoxin.

B) Digoxin immune FAB (Digibind):
Digoxin immune FAB (Digibind) is the antidote for digoxin toxicity. It works by binding to the digoxin molecules in the bloodstream, thereby inactivating them and preventing them from exerting their toxic effects on the heart. This treatment is critical in cases of severe digoxin toxicity, particularly when the patient exhibits symptoms such as life-threatening arrhythmias, severe bradycardia, or altered mental status.

C) Vitamin K:
Vitamin K is the antidote for warfarin (Coumadin) toxicity, not digoxin toxicity. It promotes the synthesis of clotting factors in the liver and is used to reverse excessive anticoagulation in cases of bleeding due to warfarin. It has no effect on digoxin toxicity, which requires specific treatment with digoxin immune FAB.

D) Inamrinone (Inocor):
Inamrinone is an inotropic medication used to treat severe heart failure by improving heart contractility. However, it is not used as an antidote for digoxin toxicity. In fact, inamrinone and other inotropic agents may be used cautiously in patients with digoxin toxicity, as they could potentially exacerbate arrhythmias, a known complication of digoxin toxicity.

A) "My heart rate may increase":
Digoxin is primarily used to slow the heart rate, not increase it. One of its actions is to increase the force of contraction of the heart while slowing the conduction through the atrioventricular (AV) node, which typically leads to a decreased heart rate. An increase in heart rate would be an unusual side effect and might indicate digoxin toxicity or another underlying issue.

B) "My vision may get blurred":
A common side effect of digoxin toxicity is visual disturbances, which may include blurred vision, yellow-green halos, or other color vision abnormalities. These symptoms are often associated with elevated digoxin levels in the blood and are a hallmark sign of toxicity.

C) "I may have constipation after taking this medication":
Constipation is not a typical side effect of digoxin. While some medications may cause constipation, this is not a primary or common side effect of digoxin. If constipation occurs, it may be due to other factors, such as diet, other medications, or a comorbid condition.

D) "My abdomen may hurt after taking this medication":
Although abdominal discomfort can be a side effect of many medications, it is not a primary or typical side effect of digoxin. If the patient experiences abdominal pain, it could be related to digoxin toxicity, especially if accompanied by other symptoms like nausea, vomiting, or diarrhea.