Which of the following is an absolute contraindication for using vasoconstrictors?

Which of the following is an absolute contraindication for using vasoconstrictors?

• A. MI episode within past 6 yrs
• B. Angina attack over 6 mos
• C. Allergy to sodium bisulfite
• D. HTN stage II

Answer: (C)

An absolute contraindication for using vasoconstrictors is an allergy to sodium bisulfite. This is important because sodium bisulfite is a preservative often included in local anesthetic formulations that contain vasoconstrictors. If a patient has a known allergy to this preservative, administering a vasoconstrictor could lead to serious allergic reactions such as anaphylaxis, which can be life-threatening. Therefore, it is crucial to avoid using vasoconstrictors in these patients to ensure their safety. In contrast, while other conditions like a recent myocardial infarction, uncontrolled hypertension, or significant cardiovascular issues are serious considerations and may warrant caution or a modified approach to care, they do not constitute an absolute contraindication. This means that, although precautions should be taken and a healthcare provider might choose to avoid vasoconstrictors in these scenarios, the situation may allow for the use of these medications with appropriate monitoring and risk assessment.

An absolute contraindication for using vasoconstrictors is an allergy to sodium bisulfite. This is important because sodium bisulfite is a preservative often included in local anesthetic formulations that contain vasoconstrictors. If a patient has a known allergy to this preservative, administering a vasoconstrictor could lead to serious allergic reactions such as anaphylaxis, which can be life-threatening. Therefore, it is crucial to avoid using vasoconstrictors in these patients to ensure their safety.

In contrast, while other conditions like a recent myocardial infarction, uncontrolled hypertension, or significant cardiovascular issues are serious considerations and may warrant caution or a modified approach to care, they do not constitute an absolute contraindication. This means that, although precautions should be taken and a healthcare provider might choose to avoid vasoconstrictors in these scenarios, the situation may allow for the use of these medications with appropriate monitoring and risk assessment.