A nurse is preparing to administer 40 mg of furosemide IV. Available is furosemide 10 mg/mL. How many mL should the nurse administer per dose?
The Correct Answer is ["4"]
Step 1: Determine the dosage required. Required dosage = 40 mg
Step 2: Determine the concentration of the available solution. Available concentration = 10 mg/mL
Step 3: Calculate the volume to be administered. Volume to be administered = Required dosage ÷ Available concentration Volume to be administered = 40 mg ÷ 10 mg/mL
Step 4: Perform the division. 40 ÷ 10 = 4
= The nurse should administer 4 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Decrease the Infusion Rate on the IV
Decreasing the infusion rate on the IV is the appropriate action to take when a client experiences flushing of the neck and tachycardia while receiving vancomycin. These symptoms are indicative of vancomycin flushing syndrome (VFS), also known as “red man syndrome,” which is a reaction caused by the rapid infusion of vancomycin. Slowing the infusion rate allows the body more time to metabolize the drug and can help alleviate the symptoms.
Choice B reason: Document that the Client Experienced an Anaphylactic Reaction to the Medication
Documenting that the client experienced an anaphylactic reaction is not accurate in this scenario. Vancomycin flushing syndrome is an anaphylactoid reaction, not an anaphylactic one. Anaphylactoid reactions are not mediated by IgE antibodies and do not require prior sensitization to the drug. Therefore, it is important to distinguish between the two and document the reaction correctly.
Choice C reason: Change the IV Infusion Site
Changing the IV infusion site is not necessary in this case. The symptoms of flushing and tachycardia are related to the rate of vancomycin infusion, not the site of infusion. Therefore, changing the site would not address the underlying issue.
Choice D reason: Apply Cold Compresses to the Neck Area
Applying cold compresses to the neck area may provide some symptomatic relief, but it does not address the root cause of the reaction. The primary intervention should be to slow the infusion rate to prevent further release of histamine and alleviate the symptoms.
Correct Answer is D
Explanation
Choice A reason: Dependent rubor
Dependent rubor is a reddish discoloration of the skin that occurs when the leg is in a dependent position (hanging down). This condition is typically associated with arterial insufficiency rather than chronic venous insufficiency. Arterial insufficiency occurs when there is inadequate blood flow through the arteries, leading to symptoms such as pain, cramping, and changes in skin color. Dependent rubor is a sign of poor arterial circulation and is not commonly seen in venous insufficiency.
Choice B reason: Thick, deformed toenails
Thick, deformed toenails can be a sign of fungal infections or other conditions affecting the nails, but they are not specifically indicative of chronic venous insufficiency. While individuals with chronic venous insufficiency may have poor circulation that can contribute to nail problems, this symptom is not a primary or common finding associated with the condition. Instead, it is more often related to other underlying health issues.
Choice C reason: Hair loss
Hair loss on the legs can occur due to various reasons, including poor circulation. However, it is more commonly associated with arterial insufficiency rather than chronic venous insufficiency. In arterial insufficiency, the reduced blood flow can lead to hair loss, shiny skin, and other changes in the lower extremities. Chronic venous insufficiency primarily affects the veins and leads to symptoms such as swelling, varicose veins, and skin changes.
Choice D reason: Edema
Edema, or swelling, is a hallmark symptom of chronic venous insufficiency. This condition occurs when the veins in the legs are unable to effectively return blood to the heart, leading to blood pooling in the lower extremities. The increased pressure in the veins causes fluid to leak into the surrounding tissues, resulting in swelling. Edema is often more pronounced at the end of the day or after prolonged periods of standing or sitting. Managing edema is a key aspect of treating chronic venous insufficiency, and it often involves the use of compression stockings, elevation of the legs, and other measures to improve venous return.

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