Which patient would be a concern for the nurse when administering mannitol (Osmitrol)?
A patient who is extremely hypertensive.
A patient who has increased intracranial pressure.
A patient who is in congestive heart failure (CHF).
A patient who has fluid volume overload.
The Correct Answer is C
Choice A rationale:
Hypertension is not a primary contraindication for mannitol use. While it's important to monitor blood pressure during mannitol administration, it's not the most concerning factor in this scenario.
Mannitol can even be used cautiously in hypertensive patients with conditions like intracranial hypertension or acute renal failure, where its benefits may outweigh the potential risks of exacerbating hypertension.
Choice B rationale:
Mannitol is actually indicated for the treatment of increased intracranial pressure (ICP). It works by drawing fluid from the brain tissues into the bloodstream, thereby reducing pressure within the skull.
Therefore, a patient with ICP would not be a concern for mannitol administration; rather, they would be a potential candidate for its use.
Choice D rationale:
While fluid volume overload can be a concern with mannitol use, it's typically managed with careful monitoring and fluid restriction.
The more significant concern in this scenario is congestive heart failure (CHF).
Choice C rationale:
Mannitol is contraindicated in patients with congestive heart failure (CHF). Here's why:
Increased Circulating Volume: Mannitol is an osmotic diuretic, meaning it draws fluid from the tissues into the bloodstream, increasing circulating blood volume. This can overload the already compromised heart in CHF patients, leading to worsening heart failure and pulmonary edema.
Elevated Blood Pressure: Mannitol can also cause a transient increase in blood pressure due to its osmotic effects. This can further strain the heart and worsen CHF symptoms.
Renal Impairment: CHF patients often have impaired renal function, which can reduce their ability to excrete mannitol effectively. This can lead to fluid retention and electrolyte imbalances, further complicating CHF management.
In summary, administering mannitol to a patient with CHF could potentially lead to:
Exacerbation of heart failure symptoms Pulmonary edema
Worsening renal function Electrolyte imbalances Increased risk of mortality
Therefore, it's crucial to avoid mannitol use in patients with CHF and to closely monitor fluid status and electrolytes in those who must receive it for other indications.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Rationale for Choice A:
It is not recommended to always consume levothyroxine with food. In fact, food can interfere with the absorption of levothyroxine, leading to decreased efficacy of the medication.
Consuming levothyroxine with food can decrease its absorption by up to 30%, which can significantly impact its ability to manage hypothyroidism symptoms.
Certain foods, such as those high in fiber, calcium, or iron, can be particularly problematic, as they can bind to levothyroxine in the gut and further reduce its absorption.
While taking levothyroxine with a small amount of food may be necessary for some individuals who experience gastrointestinal side effects, it's generally recommended to take it on an empty stomach for optimal absorption.
Rationale for Choice B:
Milk is not an ideal beverage to take with levothyroxine, as it can also interfere with absorption. Milk contains calcium, which can bind to levothyroxine and reduce its absorption.
It's best to avoid consuming milk or other calcium-rich beverages within a few hours of taking levothyroxine.
Rationale for Choice C:
Similar to milk, juice and crackers are not ideal choices to take with levothyroxine.
Juice, especially those high in acidity, can affect the absorption of levothyroxine in the gut.
Crackers, often made with refined grains, can be high in fiber, which can also interfere with absorption.
Rationale for Choice D:
Taking levothyroxine on an empty stomach, typically 30-60 minutes before breakfast, is generally recommended to ensure optimal absorption.
This allows the medication to be absorbed more efficiently in the small intestine without being affected by the presence of food.
By taking levothyroxine on an empty stomach, patients can maximize its effectiveness in treating hypothyroidism.
Correct Answer is B
Explanation
Choice A rationale:
Incorrect. Insulin pumps should be removed before bathing or swimming to prevent damage to the device. Water can enter the pump through the infusion set or through the battery compartment, causing it to malfunction. This can lead to inaccurate insulin delivery, which can result in hyperglycemia or hypoglycemia.
Additionally, the adhesive that holds the infusion set in place may not stick well to wet skin, which can increase the risk of the infusion set falling out.
It is important to note that some insulin pumps are now waterproof and can be worn while bathing or swimming. However, it is still important to check the manufacturer's instructions before doing so.
Choice B rationale:
Correct. Even though insulin pumps deliver insulin continuously, people who use them still need to monitor their blood glucose levels regularly. This is because many factors can affect blood glucose levels, such as food intake, exercise, stress, and illness.
Monitoring blood glucose levels allows people to adjust their insulin doses as needed to keep their blood glucose levels within a target range.
Recommended frequency of blood glucose monitoring:
Before meals and snacks Two hours after meals At bedtime
Before and after exercise During times of illness or stress
Whenever they feel symptoms of hypoglycemia or hyperglycemia
Choice C rationale:
Incorrect. People who use insulin pumps still need to count carbohydrates. This is because the amount of insulin that is needed to cover a meal depends on the amount of carbohydrates in the meal.
The insulin pump can be programmed to deliver different amounts of insulin for different meals, snacks, and corrections based on carbohydrate intake. This allows for more precise insulin dosing and better blood glucose control.
Choice D rationale:
Incorrect. Insulin pumps are not designed to help people lose weight. They are designed to help people manage their blood glucose levels.
While some people may lose weight when they start using an insulin pump, this is usually due to improved blood glucose control rather than the pump itself.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.
