The nurse is teaching an overweight patient to administer subcutaneous heparin. Which statement by the patient indicates understanding of the teaching?

A. When administering subcutaneous heparin, aspiration should be avoided because it can cause tissue damage and increase the risk of hematoma formation. This statement correctly reflects safe administration technique. B. Firm pressure on the injection site is not recommended after heparin administration because it can increase the risk of bruising and bleeding. Instead, gentle pressure should be applied if necessary. C. Subcutaneous injections should be given at a 45- to 90-degree angle, depending on the patient’s body mass. A 10-degree angle is too shallow and may result in improper medication delivery. D. The subcutaneous route does not provide faster absorption than other routes such as intravenous or intramuscular. Instead, it allows for slow, steady absorption, which is desirable for anticoagulants like heparin.