Site MapHelpFeedbackClinical Case 20
Clinical Case 20
(See related pages)

A 56-year-old man undergoes a laryngoscopy. Due to a strong gag reflex, extra doses of benzocaine (Hurricaine) spray are used. The patient tolerated the procedure well, but while waiting for his wife to pick him up, he started to have cyanosis around the lips. On exam, the patient has a bluish discoloration of his lips and fingertips and is complaining of a headache. You administer oxygen by nasal canula with no improvement in his cyanosis. You draw venous blood for labs, and find that it has an unusual brownish discoloration.



1

All of the following statements are likely to be true about this patient EXCEPT:
A)An arterial blood gas will demonstrate a normal PaO2 if measured (not calculated). lethal.
B)This is an idiopathic reaction to the anesthetic, and the patient can be sent home with no further management necessary.
C)The patient may require therapy with methylene blue.
D)The patient should not be treated with methylene blue if he has a history of G6PD deficiency.
E)Additional doses of benzocaine can be







Harrisons Internal MedicineOnline Learning Center

Home > 05. Oncology/Hemat. > Clinical Case 20