What is a pacemaker?

What will be an ideal response?


A natural pacemaker is a node of tissue in the heart that sets the pace of the contractions (the heart beat). It does so by initiating an electrical impulse that spreads throughout the heart muscle. An implantable (artificial) pacemaker is a medical device that is surgically placed in the chest wall and attached to the heart to control the initiation of electrical impulses when the natural pacemaker is not functionally normally.

Health Professions

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During a concentric contraction the insertion moves __________________ the origin

a. closer to b. away from c. Neither answer is correct.

Health Professions

Which one of the following describes the elbow?

A) Acetabular B) Tibial C) Calcaneal D) Cubital

Health Professions

On scene, you find a 2-year-old male patient in significant respiratory distress. He is responsive to painful stimuli and exhibits noisy respirations through an open airway. His breathing is shallow at a rate of 44 breaths/min. His pulse is rapid. Assessment of the skin shows it to be cool and diaphoretic, with cyanosis to the extremities and around the mouth. What is the immediate priority for this patient?

A) Start positive pressure ventilation B) Insert an oropharyngeal airway C) Apply oxygen through a pediatric nonrebreather mask D) Move the patient to the ambulance for immediate transport

Health Professions

The Nursing Home Reform Act of 1987 was included in the:

a. FDA Safe Medical Devices Act of 1990 b. Omnibus Budget Reconciliation Act of 1990 c. Anabolic Steroids Control Act of 1990 d. Americans with Disabilities Act of 1990

Health Professions