Explain the significance of Einthoven's triangle
What will be an ideal response?
Einthoven's triangle is a means of illustrating that the two arms and the left leg form the apices of a triangle surrounding the heart. The two apices at the upper part of the triangle represent the points at which the two arms connect electrically with the fluids around the heart. The lower apex is the point at which the left leg connects with the fluids.
You might also like to view...
A 17-year-old student complains of a "rash for 3 days.". You note pale, erythematous oval plaques over the trunk. They have fine scales and are arranged in a fernlike pattern, with parallel alignment. What is the nurse's next action?
a. Teach infectious control measures. b. Inquire about another recent skin lesion. c. Inspect the palms and the soles. d. Inform the patient that this will resolve within a week.
A 28-year-old female patient has the following preoperative assessment: type 1 diabetes; no other significant health or family history; no recent surgeries; no use of alcohol, tobacco products, or illegal drugs; medications include insulin and
aspirin. The nurse can anticipate which tests to be performed preoperatively? Note: Credit will be given only if all correct choices and no incorrect choices are selected. Select all that apply. 1. Urine pregnancy test 2. Serum glucose 3. Chest X-ray 4. ECG 5. Hemoglobin and hematocrit
The nurse asks the patient to clench the jaw. Which cranial nerve (CN) is being assessed?
1) CN I 2) CN V 3) CN VII 4) CN VIII
A nurse is counseling a young man with a new diagnosis of tuberculosis. Which of the following statements about what to expect during his treatment is incorrect?
A. He will be taking several antibiotics for several weeks. B. He will need to stay in the hospital and in isolation until he has 2 to 3 negative sputum tests. C. He will need to be observed taking his medication each day. D. He will need to be on activity restrictions until he is feeling completely recovered.