A nurse is preparing to administer potassium chloride 20 mEq. The amount available is potassium chloride liquid 40 mEq/15 mL. How many mL 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 ["7.5"]
We can calculate the volume of potassium chloride solution to administer using the following steps:
Identify the prescribed dose: The nurse needs to administer 20 mEq of potassium chloride.
Identify the concentration of available solution: The potassium chloride liquid is available in a concentration of 40 mEq/15 mL. This means there are 40 milliequivalents (mEq) of potassium chloride in every 15 milliliters (mL) of the solution.
Set up a proportion to find the volume needed:
Desired dose (mEq) : Volume to administer (mL) = Concentration (mEq/mL)
Plug in the values:
20 mEq : Volume to administer (mL) = 40 mEq/15 mL
Solve for the volume:
To isolate the volume (mL), multiply both sides of the proportion by the volume unit (mL) and divide by the dose (mEq).
Volume to administer (mL) = (20 mEq) x (mL) / (40 mEq/15 mL)
We can simplify the calculation before dividing:
Volume to administer (mL) = (20 mEq x 15 mL) / 40 mEq
Volume to administer (mL) = 300 mL / 40 mEq
Volume to administer (mL) = 7.5 mL (round to one decimal place)
Therefore, the nurse should administer 7.5 mL of the potassium chloride solution.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A) Headache:
Omeprazole is not typically prescribed for headaches. It is a proton pump inhibitor (PPI) used primarily to reduce stomach acid production and treat conditions such as gastroesophageal reflux disease (GERD) and peptic ulcers. It does not directly relieve headache symptoms.
B) Nausea:
While omeprazole can indirectly help alleviate nausea associated with acid reflux or gastritis, it is not primarily indicated for nausea relief. Its main therapeutic effect is on reducing stomach acid production.
C) Diarrhea:
Omeprazole is not used to treat diarrhea. It does not have direct effects on bowel motility or stool consistency.
D) Acid indigestion:
Omeprazole is effective in relieving symptoms of acid indigestion, also known as heartburn or acid reflux. It works by decreasing the production of stomach acid, thereby reducing the burning sensation and discomfort associated with acid reflux.
Correct Answer is B
Explanation
A) Serum calcium 10.5 mg/dL:
A serum calcium level of 10.5 mg/dL is within the normal range (8.5-10.5 mg/dL). Spironolactone does not typically affect calcium levels significantly.
B) Serum potassium 5.2 mEq/L:
An elevated serum potassium level (hyperkalemia) is a known adverse effect of spironolactone. Spironolactone is a potassium-sparing diuretic that inhibits aldosterone, leading to decreased potassium excretion and potential hyperkalemia, especially in clients with impaired renal function.
C) Serum chloride 99 mEq/L:
A serum chloride level of 99 mEq/L is within the normal range (96-106 mEq/L). Spironolactone does not typically affect chloride levels significantly.
D) Serum sodium 140 mEq/L:
A serum sodium level of 140 mEq/L is within the normal range (135-145 mEq/L). Spironolactone does not typically affect sodium levels significantly.
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