*NURSING > QUESTIONS & ANSWERS > NR 507 | NR507 WEEK 8: FINAL EXAM -LATEST 2021 (Q&A 100% CORRECT) Chamberlain College of Nursing (All)

NR 507 | NR507 WEEK 8: FINAL EXAM -LATEST 2021 (Q&A 100% CORRECT) Chamberlain College of Nursing

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Week 8: Final Exam  Due Dec 16 at 11:59pm  Points 150  Questions 75  Available Dec 10 at 12am - Dec 16 at 11:59pm 7 days  Time Limit 90 Minutes Instructions  The Week 8 final ... exam counts toward the final grade. It is comprehensive and covers material from Weeks 1–8.  The final exam consists of 75 questions and is worth 2 points each.  You have one attempt to take the exam with a 90 minute time limit. Good luck! Attempt History Attempt Time Score LATEST Attempt 1 75 minutes 146 out of 150 Score for this quiz: 146 out of 150 Submitted Dec 16 at 11:15pm This attempt took 75 minutes. Question 1 2 / 2 pts What period follows depolarization of the myocardium and represents a period during which no new cardiac potential can be propagated? Correct! Refractory Threshold Sinoatrial (SA) Hyperpolarization During the refractory period, no new cardiac action potential can be initiated by a stimulus. This selection is the only option that accurately identifies the period described in the question. Question 2 2 / 2 pts What is the suggested mean blood pressure for an 8- to 9-year-old child? Correct! 106/58 mm Hg 104/55 mm Hg 112/62 mm Hg 121/70 mm Hg The suggested mean blood pressure for an 8- to 9- year-old child is 106/58 mm Hg. For a child of 6 to 7 years old, 104/55 mm Hg is appropriate; for a 12- to 13-year-old child, 112/62 mm Hg is appropriate, and for a 16- to 18-year-old young man, 121/70 mm Hg is appropriate. Question 3 2 / 2 pts Which is an example of an endogenous antigen? Yeast Correct! Cancer cells Fungus Bacteria Of the options provided, endogenous antigens include only those uniquely produced by cancerous cells. Question 4 2 / 2 pts An infant has a crescendo-decrescendo systolic ejection murmur located between the second and third intercostal spaces along the left sternal border. A wide fixed splitting of the second heart sound is also found. These clinical findings are consistent with which congenital heart defect? Atrioventricular canal (AVC) defect Patent ductus arteriosus (PDA) Ventricular septal defect (VSD) Correct! Atrial septal defect (ASD) Because most children with ASD are asymptomatic, diagnosis is usually made during a routine physical examination by the auscultation of a crescendo-decrescendo systolic ejection murmur that reflects increased blood flow through the pulmonary valve. The location of the murmur is between the second and third intercostal spaces along the left sternal border. A wide fixed splitting of the second heart sound is also characteristic of ASD, reflecting volume overload to the right ventricle and causing prolonged ejection time and a delay of pulmonic valve closure. The presentations of other congenital heart defects are not consistent with the described symptoms. Question 5 2 / 2 pts Chvostek and Trousseau signs indicate which electrolyte imbalance? Correct! Hypocalcemia Hypercalcemia Hyperkalemia Hypokalemia Two clinical signs of hypocalcemia are the Chvostek sign and Trousseau sign. These clinical signs are not indicative of any of the other options. Question 6 2 / 2 pts How does chest wall compliance in an infant differ from that of an adult? An adult’s chest wall compliance is the same as an infant’s. An adult’s chest wall compliance is dissimilar to that of an infant’s. Correct! An adult’s chest wall compliance is lower than an infant’s. An adult’s chest wall compliance is higher than an infant’s. Chest wall compliance is higher in infants than it is in adults, particularly in premature infants. Question 7 2 / 2 pts What is the most commonly reported symptom of cancer treatment? Hair loss Nausea Weight loss Correct! Fatigue Fatigue is the most frequently reported symptom of cancer and cancer treatment. Although patients report the other options, they are not as frequently experienced as fatigue. Question 8 2 / 2 pts At birth, which statement is true? Correct! Gas exchange shifts from the placenta to the lung. Systemic resistance and pulmonary resistance fall. Systemic resistance and pulmonary resistance rise. Systemic resistance falls and pulmonary resistance rises [Show More]

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