To ensure delivery of the proper drug dosage with a metered…

To ensure delivery of the proper drug dosage with a metered dose inhaler, which of the following must be done before its use?1. The canister valve stem should be cleaned with a sharp 18 gauge needle..2. The canister should be warmed to hand or body temperature.3. The canister should be vigorously shaken.

For maintenance administration of bronchodilators to an adul…

For maintenance administration of bronchodilators to an adult patient with adequate inspiratory flow, which of the following aerosol drug delivery devices would you recommend?1. Pressurized metered dose inhaler (pMDI)2. Small-volume jet nebulizer3. Dry powder inhaler4. pMDI and holding chamber