Question 43 · LEK · Cardiac pacing
Implantable cardiac pacemakers are marked with a three-letter code (XYZ), in which each letter means:
- A. X - paced chamber; Y - sensed chamber; Z - mode of pacing.
- B. X - sensed chamber; Y - paced chamber; Z - mode of pacing.
- C. X - mode of pacing; Y - sensed chamber; Z - paced chamber.
- D. X - mode of pacing; Y - paced chamber; Z - sensed chamber.
- E. X - paced chamber; Y - mode of pacing; Z - sensed chamber.
Hint
Think of a VVI pacemaker: what does each V refer to, and what does the final letter I (inhibited) describe?
The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.
More questions on Internal medicine
- Indicate clinical conditions presenting with ‘sterile pyuria’:
- Numerous interactions between vitamin K antagonists (VKA) and other medications or food must be considered in patients chronically treated with VKA…
- A 30-year-old male complains of colic pain in the left lumbar region with macroscopic hematuria, chills and fever 40 Celsius. Indicate the most…
- A patient presenting symptoms of acute heart failure class II according to Forrester hemodynamic classification was referred to the cardiac…
- In chronic kidney disease there is a propensity for:
- Which of the following test should be performed in order to qualify the patient to the nephrectomy due to hydronephrosis without recurrent…