The directions for reconstitution of a 500 mg vial of ampicillin sodium in powder format for injection reads: "Reconstitute with 1.8 mL of sterile water for 500 mg. Each ml of reconstituted solution will contain 250 mg of ampicillin sodium." The patient/client is to receive 500 mg of ampicillin sodium every 6 hours. How many milliliters would the nurse administer?

A. Vastus lateralis:The Vastus Lateralis muscle (located on the anterolateral aspect of the thigh) is the preferred and safest site for IM injections in infants and toddlers (up to 3 years old) because it is large, well-developed, and lacks major nerves and blood vessels close to the injection site.

B. Deltoid:The deltoid muscle in the upper arm is not sufficiently developed in a 4-month-old infant. It is only recommended for use in children aged 18 months or older.

C. Dorsal gluteal:This site (upper-outer quadrant of the buttock) is contraindicated in children under 3 years old due to the risk of injury to the underdeveloped sciatic nerve. It is also generally discouraged in all clients due to the risk of nerve damage.

D. Ventrogluteal:While the ventrogluteal site (side of the hip) is the preferred site for older children and adults, it requires a well-developed muscle mass and reliable anatomical landmarks that are often less identifiable and less safe in an infant. The Vastus Lateralis is preferred for this age group.

A. Glass container with single dose of medication:This describes an ampule. An ampule is a small, sealed glass container holding a single dose of medication (or solution). It is not a diluent itself.

B. Glass container with self-sealing rubber stopper:This describes a vial. A vial is a small bottle containing medicine, often in powder or liquid form, sealed with a rubber stopper (diaphragm) that can be repeatedly punctured for drug extraction. It is not a diluent itself.

C. Prevents aspiration of tiny glass particles:This describes the function of a filter needle when withdrawing medication from an ampule, which must be broken open, potentially creating glass shards. It is a necessary safety step, not the definition of a diluent.

D. Normal saline or Sterile water:A diluent is a liquid (like Normal Saline, Sterile Water, or a specific solvent) added to a powdered or concentrated substance to decrease its concentration or to dissolve it for administration. This process is called reconstitution.