A group of novice nursing students are learning how to manually measure a client's blood pressure using a stethoscope and sphygmomanometer. Which of the following statements by students would the instructor most likely need to correct?
A) I'll inflate the cuff around 30 mm Hg above the point at which I can't palpate the client's pulse."
B) If my client's arm is too big for the cuff, I'm going to get a BP reading that's artificially low."
C) The accuracy of the whole process depends on my ability to clearly hear the Korotkoff sounds with the bell of my stethoscope."
D) With practice, my measurement of clients' blood pressures with this method will be more accurate than with automated machines."

A46-year-old man with a history of hypertension and hypercholesterolemia visits the physician for a routine followup. the patient's job involves a lot of travelling, and he admits to occasionally forgetting to take his medications with him when he travels. he complains of several episodes of chest pain in the past few months. the pain is sharp in nature, mainly over his lower chest and epigastrium, and tends to come on when walking. he believes these episodes are due to indigestion and has been taking antacids. there is a family history of heart disease, and his father died of a heart attack at age 48. on physical examination, his blood pressure is 150/80 mmhg and heart rate is 86/min. his lungs are clear to auscultation. cardiac auscultation reveals normal rate and rhythm, without rubs, gallops, or murmurs. there is no pedal oedema. he is sent for an exercise stress test. five minutes into the test, he develops st depression of 3mm in leads v1-v5. the st segment depression is greater than 0.12 seconds in duration and the stress test is stopped. which of the following is the most appropriate next step in management? - coronary angiography- holter monitor- no further tests are required- repeat stress test with thallium- upper gastrointestinal endoscopy