Patients with hemophilia do not require antibiotic premedication for injections of local anesthesia

Which muscle is NOT readily accessible?

a. Deltoid b. Biceps brachii c. Coracobrachialis d. Triceps brachii

After preparing the ECG machine, you explained the procedure to Mrs. Thomas, connected the electrodes, and began the tracing, as shown in the picture. You rechecked the electrodes and they are all placed correctly. None of the wires are loose. However, you notice that Mrs. Thomas's skin smells fragrant, as though she has used a body lotion recently. Which of the following describes the problem, its possible cause, and the correct solution?

A. Flat line caused by crossed wires; reconnect the wires correctly B. Wandering baseline caused by lotion on the skin; re-prep the skin with isopropyl alcohol C. AC interference caused by nearby equipment; turn equipment off D. Extraneous marks caused by paper clips; remove the paper clips E. Somatic interference caused by patient shivering; offer a warm blanket