A nurse is preparing to administer penicillin IM to an adult client. Which of the following angles should the nurse use for injection into the client's ventrogluteal muscle?

B. Dextrose 10% in water is a solution that contains a high concentration of glucose (dextrose). Infusing D10W can lead to an increase in blood glucose levels, especially if the client's body cannot metabolize the glucose effectively (e.g., in diabetic patients or those with impaired glucose tolerance).

A. Dextrose 10% in water does not contain calcium. Hypercalcemia refers to elevated calcium levels in the blood, which can occur due to various causes such as hyperparathyroidism or excessive vitamin D intake, but not from D10W infusion.

C. Dextrose 10% in water is not used to treat hypovolemia (low blood volume). It is a solution primarily used to provide calories and prevent ketosis rather than to expand circulating blood volume.

D. Dextrose 10% in water does not contain potassium. Hypokalemia (low potassium levels) can occur due to various reasons such as diuretic use, gastrointestinal losses, or inadequate intake, but it is not directly related to D10W infusion.

B. Subcutaneous injections are generally administered at a 45° or 90° angle, depending on the amount of subcutaneous tissue present. In obese clients, there is typically more subcutaneous tissue, so inserting the needle at a 90° angle may be necessary to ensure proper medication absorption.

A. A smaller gauge needle (such as 25 or 26 gauge) is usually more appropriate for subcutaneous injections to minimize discomfort and tissue trauma, especially in obese clients where there is more subcutaneous tissue.

C. Massaging the injection site after administering heparin is not recommended. It can cause discomfort, bruising, and potentially alter the absorption rate of the medication. The injection site should be gently

pressed with a dry gauze pad after withdrawal of the needle to help disperse the medication and prevent leakage, but massaging should be avoided.

D. Aspiration is not necessary for subcutaneous injections. It is generally used for intramuscular injections to ensure the needle is not in a blood vessel, which is less of a concern for subcutaneous injections. The injection technique involves pinching the skin and injecting the medication into the subcutaneous tissue without aspirating.