The healthcare provider prescribes clopidogrel (Plavix) for a patient at risk for a myocardial infarction. While instructing the patient about the adverse effects and precautions associated with this drug, the nurse tells him that the following drugs should not be used while on clopidogrel unless the doctor is consulted. (Select all that apply.)

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.

A. If he misses a dose, he should double the dose at the next scheduled time: This statement is incorrect. Doubling the dose of warfarin after missing a dose can significantly increase the risk of bleeding due to excessive anticoagulation. The nurse should emphasize the importance of taking the medication as prescribed and what to do if a dose is missed, such as contacting the healthcare provider for guidance.

B. The client should use an electric razor while on this medication: This statement is correct. Warfarin is an anticoagulant medication that can increase the risk of bleeding. Therefore, it's essential for patients taking warfarin to avoid activities that may increase the risk of injury or bleeding, such as shaving with a traditional razor that can cause cuts or nicks. Using an electric razor reduces this risk.

C. Mild nosebleeds are common during initial treatment: This statement is not entirely accurate. While warfarin can increase the risk of bleeding, including nosebleeds, it's not necessarily common during the initial treatment phase. However, patients should be aware of signs of bleeding and report them to their healthcare provider promptly.

D. Warfarin increases the risk for deep vein thrombosis: This statement is incorrect. Warfarin is actually prescribed to reduce the risk of blood clots, including deep vein thrombosis (DVT), pulmonary embolism (PE), and stroke, in patients who are at risk for these conditions. It works by inhibiting the formation of blood clots. Therefore, it does not increase the risk of DVT; rather, it decreases it.