Refractory periods Guides d'étude, Notes de cours & Résumés

Test Bank CHAPTER 1 Multiple Choice 1. What is the MOST common emergency to occur in the dental office? A. Mild allergic reaction B. Angina C. Syncope D. Anaphylaxis 2. All of the following procedures will help to prevent an emergency in a dental office EXCEPT: A. accurate medical history taking. B. taking and recording vital signs. C. updating the medical emergency kit. 3. If a patient responds positively on his or her medical history to epilepsy, you will need to be on th...

PATHO FINAL UT TYLER QUESTIONS & ANSWERS Which ion is primarily responsible for changes in acid-base balance in the body? a.) phosphorus (Ph-) b.) hydrogen (H+) c.)sodium (Na+) d.) carbonic acid (HCO3-) - ANSWER-B Movement of fluid in and out of the capillary bed is primarily controlled by two forces. Osmotic pressure is best described as: a.) the pressure created in the capillaries when the heart contracts b.) the pulling force exerted by proteins and other large molecules c.) the fo...

What are the 6 parts of the cardiac conduction cycle? correct answer: -SA node -Internodal pathways -AV node -Bundle of His -R and L bundle branches -Purkinje fibers What is the SA node? correct answer: -Small cluster of cells located in the upper R atrium *-Pacemaker of the heart* What are internodal pathways? correct answer: Impulses sent by the SA node that travel through the atrial muscle fibers via the intra-atrial pathways Allows for simultaneous depolarization and contra...

ICD Battery Types - 1. Li/SVO: Lithium/Silver-Vanadium Oxide (1st gen.) 2. Lithium/Manganese Dioxide (2 manufacturers) 3. Lithium/Silver-Vanadium Oxide-Carbon Monofluoride (2 manufacturers -MDT) Capacitor Types - -Aluminum Electrolytic -Tantalum 5 Phases of Cardiac Action Potential - *Phase 0: influx of Na+ (depolarization - conduction velocity) *Phase 1: transient efflux of K+ (how quickly the cell can be depolarized again) *Phase 2: influx of Ca 2+ & Na+ (") *Phase 3: efflux of K+...

Electrical Activity of the HeartWhat is an action potential? - correct answer Rapid change in the transmembrane potential followed by a return to the resting membrane potential When do changes in transmembrane potential occur? - correct answer During changes in the permeability of the cell membrane to intracellular and extracellular ions Is the duration of APs in cardiac cells shorter or longer than in nerves cells or skeletal/smooth muscle? - correct answer Much longer What is the effe...

jejunostomy location - LUQ *frequently not marked by the WOC nurse jejunostomy disease and procedure - ischemic bowel, crohn's, trauma, necrotizing enterocolitis diversion of small bowel at jejunum, with or without colectomy, with or without small bowel resection, loop or end stoma jejunostomy function and management - *function begins in 24-48 hours *initially gas, then watery clear/green output (fluid and digestive enzymes) *output up to 2400ml/day *empty pouch when 1/3 to 1/2 full j...

NAECB EXAM 2024 WITH 100% CORRECT ANSWERS An asthma episode includes which of the following criteria? a. mucus production b. fevere c. rhinitis d. gastroesophageal reflux disease - correct answer The three components of an asthma exacerbation are inflammation, bronchoconstriction, and mucus production. What is the mechanism of action for short-acting bronchodilators? a. pet dander and cleaning sprays b. perfumes and tree pollen c. leaf smoke and air fresheners d. cigarette smoke ...

EXSC Midterm Exam Questions With 100% Correct Answers 2024 What are the 3 substrates? - answercarbohydrates, fats, proteins Glycolysis is - answerBreakdown of glucose Each glucose molecule that enters glycolysis results in how many pyruvate - answer2 pyruvate During the krebs cycle - answerAcetyl Co-A is broken-down to create ATP,NADH and FADH2 Within the electron transport chain - answer- Electrons are dropped off from NADH and FADH - ATP is created Glycogen - answerGlycogen is simpl...

ENPC exam question and answerENPC exam question and answer Allowing caregivers to remain with the pediatric patient is more supportive in this situation. Allow family members to serve as interpreters during the procedure Provide access to nondenominational clergy in a quiet area 4. Which of the following patient presentations should increase suspicion of potential child maltreatment? Right radial spiral fracture in a 10-year-old practicing martial arts Bruising to the left ear of a newbor...

True / False 1. There are many more neurons than glia in the nervous system. ANSWER: DIFFICULTY: KEYWORDS: False Easy Factual ANSWER: DIFFICULTY: KEYWORDS: False Easy Factual a. b. True False 2. Microtubules are the largest type of fibers found in the neural cytoskeleton. ANSWER: DIFFICULTY: KEYWORDS: True Moderate Factual a. b. True False 3. Mitochondria are responsible for the production of proteins in the neural cell body. a. b. True False 4. Bipolar neurons have two branches ...