Refractory periods - Samenvattingen, Aantekeningen en Examens

ati-med-surg-proctored-exam-2023-real-exam-questions-with-well-detailed-and-explaned-answer-key ATI MED SURG Proctored EXAM 2023 REAL EXAM Questions WITH WELL Detailed AND Explaned Answer KEY ATI MED SURG PROCTORED EXAM 2023 REAL EXAM QUESTIONS WITH WELL DETAILED AND EXPLANED ANSWER KEY 1.A nurse is caring for a client who has HIV. Which of the following laboratory values is the nurse's priority? A. Positive Western blottest Rationale:The client is already identified as HIV positive.The...

PRITE EXAM (2024/2025) - Questions and Answers (Complete Solutions) Amnesia preceded by epigastric sensation and fear are associated with electrical abnormality where? Temporal lobe Memory loss pattern in dissociative amnesia Memory loss occurs for a discrete period of time Amnesia characterized by loss of memory of events that occur after onset of etiologic condition or agent Anterograde What psychoactive drug produces amnesia? Alcohol Brain Lesions ... Visual problem in pituitary tumor compr...

BIO 669 Quiz 4- Cardiovascular Latest;(2024/2025) Questions and Answers / 100% Correct/ (78 Q & A) BIO 669 Quiz 4- Cardiovascular Latest;(2024/2025) Questions and Answers / 100% Correct/ (78 Q & A) 1. Which of the following conditions is the most immediately at risk for serious complications? a. Unstable angina b. Prinzmetal angina c. STEMI d. NSTEMI 2. Thromboangiitis obliterans (Buergers disease) is an autoimmune condition that is: a. A result of over activation of ...

MN580 MIDTERM EXAM REVIEW QUESTIONS WITH ANSWERS LATEST UPDATE (GRADED A+)The primary care pediatric nurse practitioner orders a pulmonology consult for a child who has severe asthma. The nurse practitioner writes “child with asthma refractory to conventional treatments needs suggestions for alternative treatments.” The nurse practitioner expects the pulmonologist to A. confirm the medical diagnosis for the child’s parents. B. make recommendations for disease management. Correct C. s...

Relative refractory periods - ️️occurs towards the end of the T-wave when most ventricular cells are repolarized and vulnerable to new stimuli; can lead to VT if PVC lands during this time Refractory = resistant Supraventricular Tachycardia (SVT) - ️️§ regular but fast rhythm § rate 150-250 § P wave merged with T wave § PRI variable & difficult to measure § QRSà typically narrow § Common causes: stimulants, electrolyte imbalance, hypoxia Sinoatrial Node (SA node) Rate? ...

ENPC EXAM 1. Which of the following would be an abnormal finding in a patient with glomerulonephritis? Clear urine There is a decrease in urine output for patient's with glomerulonephritis. Urine would be concentrated and dark brown/tea-colored. Decreased energy Hypertension Nausea, vomiting 2. A 3-year-old is brought to the emergency department with a 2-day history of a runny nose, lowgrade fever, and a "barky" cough at night. The caregiver tells the emergency department ...

CMN 548 Unit 5 Exam Questions with All Correct Answers What do DRAs do to cardiac function? - Answer- -DRAs decrease cardiac contractility, disrupt enzymes contractility in cardiac cells, increase circulating levels of catecholamines & prolong atrial & ventricular conduction time and refractory periods Which DRAs are the most cardiotoxic? - Answer- -Low potency DRAs cause most cardiotoxicity What are the potential cardiac complications for the use of haloperidol (Haldol)? - Answer- may c...

Question 1 1 / 1 pts Which of these is not a characteristic of an action potential? Each normal action potential for a given cell type looks identical, depolarizes to the same potential, and repolarizes back to the same resting potential. An action potential at one site causes depolarization at adjacent sites, bringing those adjacent sites to threshold. If an excitable cell is depolarized to threshold in a normal manner, then the occurrence of an action potential is inevitable. On the...

NCLEX 3500: Cardiac Exam Questions With 100% Correct Answers 2024/2025 Following a myocardial infarction, a client develops an arrhythmia and requires a continuous infusion of lidocaine. To monitor the effectiveness of the intervention, the nurse should focus primarily on the client's: 1. electrocardiogram (ECG). 2. urine output. 3. creatine kinase (CK) and troponin levels. 4. blood pressure and heart rate. Correct Answer: 1 RATIONALES: Lidocaine is an antiarrhythmic and is given for the...

disopyramide therapeutic uses and electrophysiologic effects Class 1A uses: similar to quinidine (treat AFl, AF, reentrant SVTs, VT) use is limited by negative inotropic potential and strong anticholinergic propertiesterm-91 EP effects: blocks NA+ channel and slows depolarization, blocks K+ channel to prolong refractory period comments: similar to quinidine (may suppress automaticity of purkinje fibers or cause torsades de pointes) but causes fewer GI side effects dry mouth...