A healthcare professional is preparing a bottle of Amoxicillin suspension for this order: Amoxicillin 500mg PO q8h × 5 days. The pharmacy has available 100-mL bottles and 150-mL bottles containing 250mg/5mL (see label).

The healthcare professional determines that the patient will receive 10mL for each dose and 3 doses each day. This will require 30mL of suspension each day for 5 days, or a total of 150mL. The healthcare professional selects the 150-mL bottle and adds 150mL of water to it.

However, the liquid overflows from the bottle.

Answer the following:

What went wrong here?

What is the importance of following manufacturer guidelines for preparing medications?

How will this problem affect the patient care?