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A nurse is preparing to administer potassium chloride 30 mEq PO daily. The amount available is potassium chloride 20 mEq/15mL. How many mL should the nurse administer?

(Round the answer to the nearest tenth/whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Answer and Explanation

The Correct Answer is ["23"]

To determine how many milliliters (mL) of potassium chloride the nurse should administer to provide 30 mEq, we can set up a proportion:

20 mEq is contained in 15 mL. So, to find out how many mL contain 30 mEq, we can set up the proportion:

20 mEq:15 mL=30 mEq:? mL20mEq:15mL=30mEq:xmL

Cross multiply:

20×?=15×3020×x=15×30

20?=45020x=450

Now, solve for ?x:

?=45020x=20450

?=22.5x=22.5

So, the nurse should administer approximately 22.5 mL of potassium chloride.

Rounded to the nearest whole number, this would be 23 mL.

Therefore, the nurse should administer 23 mL of potassium chloride.


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Correct Answer is C

Explanation

  1. White Blood Cell Count (WBC): WBCs are part of the immune system and play a role in fighting infections. However, they are not directly involved in hemostasis or clot formation. WBCs do not adhere to the vessel wall during hemostasis.
  2. Activated Partial Thromboplastin Time (aPTT): aPTT measures the time it takes for blood to clot. It is primarily used to monitor heparin therapy, not warfarin. aPTT is not specific for warfarin monitoring.
  3. Prothrombin Time (PT): PT measures how quickly blood clots. It is used to monitor warfarin therapy and assess clotting factors. PT is essential for monitoring warfarin effectiveness.
  4. Platelet Count: Platelets are crucial for clot formation. Platelet count helps assess platelet function. Platelets play a direct role in hemostasis.

Correct Answer is D

Explanation

A. Food, Drug and Cosmetic Act (FD&C Act): This act sets the groundwork for food and drug regulations, but it's not the specific legislation governing dietary supplements. While FD&C Act applies to some aspects of supplements, DSHEA has more specific regulations.

B. Joint Commission on the Accreditation of Healthcare Organizations (JCAHO): This organization focuses on accrediting healthcare facilities, not regulating supplements.

C. Health and Human Services (HHS): HHS is a broad department encompassing various healthcare agencies, but DSHEA is the specific act within HHS that governs supplements.

D. Dietary Supplement Health and Education Act (DSHEA): This 1994 act specifically addresses dietary supplements, outlining regulations for labeling, manufacturing, and marketing. It places the responsibility for ensuring the safety and effectiveness of supplements on the manufacturers, unlike prescription drugs approved by the FDA.

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