A nurse is preparing to administer amantadine 150 mg PO every 12 hr. The available medication is amantadine 50 mg/5 mL syrup.

How many mL should the nurse administer per dose?

Step 1: Identify the required dose of lithium, which is 300 mg.

Step 2: Identify the available dose of lithium carbonate, which is 150 mg per capsule.

Step 3: Calculate the number of capsules needed using the formula: Number of capsules = Required dose ÷ Available dose.

Numberofcapsules=300 mg150 mg/capsule

\(Number\ of\ capsules = {300\ mg \over 150\ mg/capsule}\)

Step 4: Solve the equation.

Numberofcapsules=2 capsulesNumberofcapsules=2capsules

So, the nurse should administer 2 capsules per dose to achieve the required lithium dose of 300 mg.

: The correct answer/s is Choice/s.

Choice A rationale: Phosphate level is a crucial indicator of the body’s electrolyte balance. In patients with anorexia nervosa, phosphate levels can be significantly affected due to malnutrition and the body’s metabolic response to starvation. Low phosphate levels, known as hypophosphatemia, can lead to serious complications such as muscle weakness, neurological dysfunction, and potentially life-threatening cardiac issues.

Choice B rationale: Capillary refill is a quick test performed on a patient to assess the adequacy of peripheral circulation. The time taken for color to return to an external capillary bed after pressure has been applied to cause blanching signifies the status of the patient’s peripheral blood circulation. Delayed capillary refill time may indicate shock or dehydration, which could be a concern in a patient with anorexia nervosa who may be dehydrated or malnourished.

Choice C rationale: Sodium level is another important electrolyte that needs to be monitored. Patients with anorexia nervosa can have abnormal sodium levels due to various factors such as vomiting, use of diuretics, or not consuming enough dietary sodium. Both high sodium (hypernatremia) and low sodium (hyponatremia) levels can lead to severe neurological symptoms and are considered medical emergencies.

Choice D rationale: Magnesium level is also an important consideration in patients with anorexia nervosa. Low magnesium levels, or hypomagnesemia, can occur due to inadequate dietary intake or excessive loss from the gastrointestinal tract, which can be seen in conditions like anorexia nervosa. Hypomagnesemia can lead to symptoms such as muscle cramps, seizures, and even cardiac arrhythmias.

Choice E rationale: Glucose level is a key indicator of a person’s metabolic state and energy balance. In patients with anorexia nervosa, glucose levels can be low due to inadequate food intake. Hypoglycemia, or low blood sugar, can lead to symptoms such as weakness, tremors, confusion, and in severe cases, it can be life-threatening.