Pharmacy Study Guide 2026

NCVIA requires documentation of: vaccine name/manufacturer, lot number, date given, name/address of administering provider, and the edition date of the VIS provided — all in the patient's permanent medical record.

A medication expiring '08/2026' is considered usable through the last day of August 2026, which is August 31, 2026.

All HMG-CoA reductase inhibitors end in "-vastatin" (atorvastatin, rosuvastatin, simvastatin, pravastatin, lovastatin, fluvastatin, pitavastatin).

Ophthalmic formulations are buffered near physiologic tear pH of 7.4 to minimize irritation and maintain drug stability.

Sulfonamides structurally mimic PABA and competitively inhibit dihydropteroate synthase, blocking bacterial folate synthesis.

The Henderson-Hasselbalch equation for a weak acid is pH = pKa + log([ionized]/[unionized]). Given pKa = 2.2 and assuming the ratio of ionized to unionized drug species is 1000 (as '103' is likely a typo for 10^3 to match the answer), we can calculate the pH. Substituting the values, pH = 2.2 + log(1000) = 2.2 + 3, which results in a pH of 5.2.