A nurse is preparing to administer 4,000 units of heparin subcutaneously to a client who has deep-vein thrombosis. Available in heparin 10,000 units/mL. How many mL of heparin should the nurse administer?
(Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["0.4"]
To calculate the volume of heparin needed, you can use the formula:
Volume (mL) = Desired dose (units) / Concentration (units/mL)
In this case, the desired dose is 4,000 units and the concentration is 10,000 units/mL.
Volume = 4,000 units / 10,000 units/mL = 0.4 mL
So, the nurse should administer 0.4 mL of heparin.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Decrease in protein:
This choice is incorrect. Albumin is a protein found in the blood, and when a client is receiving an infusion of albumin, it is likely to increase, not decrease, the overall protein level in the bloodstream. Albumin infusions are often given to help increase plasma oncotic pressure and improve fluid retention in conditions like shock.
B. Oxygen saturation 96%:
This choice is incorrect. Oxygen saturation of 96% is within the normal range and reflects adequate oxygenation. It doesn't directly relate to the administration of albumin in shock.
C. PaCO2 30 mm Hg:
This choice is incorrect. The partial pressure of carbon dioxide (PaCO2) of 30 mm Hg reflects a respiratory value and doesn't directly relate to the administration of albumin or the management of shock. It's important for assessing acid-base balance, but it's not a specific finding related to the albumin infusion.
D. Increase in BP:
This is the correct choice. Albumin is a colloid solution that helps increase the oncotic pressure within blood vessels, which can contribute to an increase in blood volume. When blood volume increases, it can lead to an increase in blood pressure, which is a desired effect in the management of shock. Increasing blood pressure helps improve perfusion to vital organs and tissues, which is essential in shock situations.
Correct Answer is ["7.5"]
Explanation
To calculate the amount of potassium chloride elixir needed per dose, we can use the following formula:
Amount per dose (mL) = (Desired dose in mEq / Concentration in mEq/mL) * Volume in mL
Given:
Desired dose = 20 mEq/day divided equally every 12 hr = 10 mEq/dose
Concentration = 6.7 mEq/5 mL
Plugging in the values:
Amount per dose (mL) = (10 mEq / 6.7 mEq/5 mL) * 5 mL
Calculating:
Amount per dose (mL) ≈ 7.46 mL
Rounded to the nearest tenth, the nurse should administer approximately 7.5 mL of the potassium chloride elixir per dose.
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