When 250 mg of a medication is diluted in 500 mL of 5% dextrose in water, how many milligrams of the medication will be in 1 mL of D5W?

0.5.

50.

500.

Answer and Explanation

The Correct Answer is D

The question asks how many milligrams of the medication will be in 1 mL of D5W. To find this, we need to know the concentration of the medication in the solution.

Concentration is the amount of medication per unit volume of solution. We can use this formula:

Concentration = Mass / Volume

We know that 250 mg of the medication is diluted in 500 mL of D5W. So we can plug these values into the formula:

Concentration = 250 mg / 500 mL Simplifying, we get:

Concentration = 0.5 mg / mL

This means that there are 0.5 mg of the medication in every 1 mL of D5W. So the answer is

To check our answer, we can use another formula:

Mass = Concentration x Volume

If we want to find the mass of the medication in 1 mL of D5W, we can multiply the concentration by the volume:

Mass = 0.5 mg / mL x 1 mL Simplifying, we get:

Mass = 0.5 mg

This matches our answer.

The other choices are wrong because they do not use the correct formula or values. Here is why:

Choice A is wrong because it uses the inverse of the concentration (1 / 0.5) instead of the concentration (0.5).

Choice B is wrong because it uses the mass of the medication (250 mg) instead of the concentration (0.5 mg / mL).

Nursing Test Bank

Quiz #1: RN Exams Pharmacology Exams Quiz #2: RN Exams Medical-Surgical Exams Quiz #3: RN Exams Fundamentals Exams Quiz #4: RN Exams Maternal-Newborn Exams Quiz #5: RN Exams Anatomy and Physiology Exams Quiz #6: RN Exams Obstetrics and Pediatrics Exams Quiz #7: RN Exams Fluid and Electrolytes Exams Quiz #8: RN Exams Community Health Exams Quiz #9: RN Exams Promoting Health across the lifespan Exams Quiz #10: RN Exams Multidimensional care Exams

Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Quiz #1: Naxlex RN Comprehensive online practice 2019 B with NGN Quiz #2: Naxlex RN Comprehensive Predictor 2023 Quiz #3: Naxlex RN Comprehensive Predictor 2023 Exit Exam A Quiz #4: Naxlex HESI Exit LPN Exam Quiz #5: Naxlex PN Comprehensive Predictor PN 2020 Quiz #6: Naxlex VATI PN Comprehensive Predictor 2020 Quiz #8: Naxlex PN Comprehensive Predictor 2023 - Exam 1 Quiz #10: Naxlex HESI PN Exit exam Quiz #11: Naxlex HESI PN EXIT Exam 2

Free Nursing Study Resources

Correct Answer is B

Explanation

Ask the client to describe the discomfort. This is the best action to establish a nursing diagnosis of pain related to an abdominal incision because it allows the nurse to assess the location, intensity, quality, and duration of the pain, as well as any factors that aggravate or relieve it.

This information can help the nurse to plan appropriate interventions and evaluate their effectiveness.

Choice A. Continue to observe the client is wrong because it does not address the client’s pain or communicate empathy. The nurse should not ignore or minimize the client’s pain, but rather acknowledge it and offer assistance.

Choice C. Encourage the client to progressively relax all muscle groups is wrong because it is a nonpharmacological intervention that may help to reduce pain, but it does not establish a nursing diagnosis of pain. The nurse should first assess the client’s pain before implementing any interventions.

Choice D. Administer the prescribed analgesic and document the client’s response is wrong because it is a pharmacological intervention that may help to relieve pain, but it does not establish a nursing diagnosis of pain. The nurse should first assess the client’s pain before administering any medications.

A. Hypokalemia. B. Hypocalcemia. C. Hyponatremia. D. Hypochloremia.

Correct Answer is A

Explanation

This is because diarrhea can cause a loss of potassium along with water and other electrolytes. Potassium is an important mineral that helps regulate the heartbeat, nerve impulses and muscle contractions. Low levels of potassium can cause symptoms such as weakness, fatigue, muscle cramps, irregular heartbeat and constipation.

Choice B. Hypocalcemia is wrong because diarrhea does not usually cause a loss of

calcium. Calcium is another mineral that helps with muscle and nerve function, blood clotting and bone health. Low levels of calcium can cause symptoms such as numbness, tingling, muscle spasms, seizures and confusion.

Choice C. Hyponatremia is wrong because diarrhea can cause a loss of sodium, but not to the extent that it causes hyponatremia. Sodium is the most abundant electrolyte in the body and it helps regulate fluid balance, blood pressure and nerve and muscle function. Low levels of sodium can cause symptoms such as headache, confusion, nausea, vomiting, seizures and coma.

Choice D. Hypochloremia is wrong because diarrhea can cause a loss of chloride, but not to the extent that it causes hypochloremia. Chloride is another electrolyte that helps maintain fluid balance, blood pressure and acid-base balance. Low levels of chloride can cause symptoms such as weakness, dehydration, alkalosis (high blood pH) and muscle twitching.

The normal ranges for electrolytes in the blood are:

Potassium: 3.5 to 5 mEq/L
Calcium: 8.5 to 10.2 mg/dL
Sodium: 135 to 145 mEq/L
Chloride: 96 to 106

View Question and Answer

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

When 250 mg of a medication is diluted in 500 mL of 5% dextrose in water, how many milligrams of the medication will be in 1 mL of D5W?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

For a client who is crying and seems agitated after major abdominal surgery, which action should a nurse take to establish a nursing diagnosis of pain related to an abdominal incision?

Correct Answer is B

Explanation

Which electrolyte imbalance should a nurse expect to assess in a client who reports diarrhea for the past three days?

Correct Answer is A

Explanation

A client on digitalis has a lab report of potassium 3.0 mEq/L. The nurse would instruct the client to eat which of these foods?

A health care provider prescribes one ounce of an elixir medication for a client. How many milliliters (mL) of medication should the nurse instruct the client to take during discharge teaching?

Which health care provider prescription for a client with a nephrostomy tube should a nurse question?

When evaluating a client for a tendency toward addictive behaviors, the nurse would expect which findings?

A nurse is teaching a client with newly diagnosed hemophilia about home care practices. What statements by the client indicate that teaching has been effective? Select all that apply.

Which nursing action is the priority intervention for a client diagnosed with total urinary incontinence?

What pain description is the client with renal calculi most likely to report during an assessment?

The nurse is assessing a client presenting with diazepam intoxication. What signs and symptoms are consistent with benzodiazepine intoxication? Select all that apply.