The patient, age 42, has chronic otitis media. Otoscopic examination reveals a central perforation of the eardrum with purulent drainage into the ear canal. A CT scan confirms the presence of a cholesteatoma in the middle ear, and he is scheduled for a tympanoplasty. Which postoperative instruction does the nurse teach him?

          A patient is prescribed eye drops that stimulates iris sphincter contraction, permitting aqueous humor to flow. The nurse would reinforce the teaching by referring to the drops as:

Which of the following is NOT one of the 4 C’s of Rule-Based Behavioral Investing?

Cluster analysis using k-means is an example of supervised machine learning.

Which technique allows you to segment customers into groups?

When you begin a cluster analysis how many clusters should you start with?

A 68 year old patient with a history of HTN, DM, and CHF presents with shortness of breath. The patient reports he ran out of Lasix at home, and his last dose was 4 days ago. He reports feeling very winded and fatigued. His vital signs are the following: T 97.2F, HR 107, BP 158/77, RR 31, O2 saturation of 98% on 45% Ventimask. The MD believes the patient’s condition is easily reversible, and orders 40mg IV Lasix and 5mg IV Metoprolol. Given the information on his condition, which of the following would be most appropriate to support this patient until his condition can be reversed?

When chlorine gas comes in contact with the body’s mucous membranes, it forms:

What is the dioptric power of a lens that has a focal length of positive 500mm?

You respond to a residence for an unknown emergency involving an 83-year-old man. When you arrive, you find the patient, who is conscious and alert, sitting on his couch with his head held over a bowl. He tells you that his nose started bleeding about 20 minutes ago and he cannot get it to stop. As your partner assists the patient in controlling the bleeding, you inquire about his medical history. He tells you that he has chronic atrial fibrillation, has high blood pressure, and is occasionally depressed. When you ask him about compliance with his medications, he tells you, “I take my medicine every day, but the writing on the bottles is so small.” The patient’s blood pressure is 112/58 mm Hg, pulse rate is 88 beats/min and irregular, and respirations are 18 and unlabored. This patient has MOST likely inadvertently: