Author: Anonymous

A sample weighs 8 grams and has undergone 3 half lives. What did it originally weigh?

A patient who recently had the tip (apex) of her tongue pierced (see image) complains of persistent pain and redness in and around the piercing site. You make a diagnosis of bacterial infection secondary to the piercing procedure. Based upon the location of the infection, which of the following lymph nodes would the infection most likely spread to first?  

During a procedure to biopsy lymph nodes from the mid-jugular chain, a surgeon accidentally cuts the internal laryngeal nerve. Which of the following is most likely to occur as a result of this action?

A patient is diagnosed with a tumor in the apex of his left lung (Pancoast tumor). The tumor mass is growing through the superior thoracic aperture, and is putting pressure on structures in the base of the neck. Physical examination reveals that the patient’s left pupil is much smaller than his right pupil, and his left upper eyelid is somewhat droopy. Based upon these findings, which one of the following structures is most likely to have been injured by the tumor?

Following recovery from a knife wound to the buttock (gluteal) area, a patient complains of difficulty walking. Physical examination reveals that the patient can stand upright on his left foot while his right foot is lifted off of the ground. However, when he attempts to stand on his right foot and lift his left foot off of the ground, he is unable to maintain his balance, and he falls to his left side. You recognize this as Trendelenburg Sign. In this patient, which one of the following nerves was most likely damaged?

A patient is diagnosed with a tumor in the apex of his left lung (Pancoast tumor). The tumor mass is growing through the superior thoracic aperture, and is putting pressure on structures in the base of the neck. Physical examination reveals that the patient has a weak, raspy voice. He also indicates that he has had a dry, unproductive cough for several weeks. Based upon these findings, which one of the following structures is most likely to have been injured by the tumor?

Radioactive Cu-64 decays with a half life of 12.8 days. If you began with 445. g of Cu-64, how much would be left after 30 days?

Tears produced during crying often cause the nose to “run” (drip fluid). This is due to the fact that tears are conveyed to the nasal cavity by the nasolacrimal duct, which has a distal opening into which one of the following structures?

During a procedure to remove a lipoma from a woman’s neck, you wish to anesthetize all of the cutaneous branches of the cervical plexus at the “nerve point” (punctum nervosum). Which one of the following locations is best to inject lidocaine for this purpose?

A patient presents at the dentist’s office complaining of a toothache. The dentist observes severe decay of the tooth indicated by the arrow in the image. Before attempting to remove this decay and put in a filling, the dentist desensitizes this tooth by anesthetizing the nerve that passes through which one of the following spaces?