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.)

A) "Apply the ointment in a thin line into the conjunctival sac":
Applying the antibiotic ophthalmic ointment in a thin line into the conjunctival sac ensures that the medication comes into direct contact with the infected area of the eye. This method facilitates optimal absorption and distribution of the medication to effectively treat bacterial conjunctivitis. Ensuring correct application technique helps prevent unnecessary wastage and ensures that the medication reaches its intended site, maximizing therapeutic benefits.

B) "Keep your eye open for 30 sec after instilling the ointment":
While keeping the eye open for a brief period after instilling the ointment can facilitate distribution, it is secondary to ensuring the correct placement of the medication into the conjunctival sac, where it can act directly on the infection.

C) "Use a sterile glove and applicator to apply the antibiotic ointment":
Using a sterile glove and applicator may not be routinely necessary for applying antibiotic ophthalmic ointment. Clean hands and ensuring the tip of the tube or applicator does not touch any surfaces can maintain appropriate hygiene and prevent contamination.

D) "Always wipe from the outer to the inner canthus when wiping away secretions":
While wiping secretions should be done gently to avoid irritation, the direction (outer to inner canthus) primarily aims to prevent spreading infection to the unaffected eye. It is important but not directly related to the technique of applying ophthalmic ointment.

To determine how many hydrochlorothiazide tablets to administer per dose, we can perform a simple calculation:

Identify the prescribed dose: The nurse needs to administer 25 mg of hydrochlorothiazide per dose.

Identify the tablet strength: Each available tablet contains 50 mg of hydrochlorothiazide.

Calculate the number of tablets: We need to find out how many 50 mg tablets are needed to deliver the prescribed 25 mg dose.

Here, dividing the prescribed dose by the tablet strength will tell us how many tablets are required:

Number of tablets = Prescribed dose / Tablet strength

Number of tablets = 25 mg / 50 mg/tablet

Since the division results in 0.5, we need to round to the nearest whole number for medication administration.

Therefore, the nurse should administer 1 tablet of hydrochlorothiazide per dose.