Unit 2 practice questions: NURS 172 with 100% Correct Answers

Unit 2 practice questions: NURS 172 with 100% Correct Answers Which of the following indicates an abnormal assessment finding of the respiratory system? a. Symmetrical chest expansion b. Muscle retractions with inhalation c. The sound of resonance with percussion of lung tissue d. Pink mucosa of the mouth and nares - Correct Answer ️️ -B You are caring for a patient who is currently receiving continuous pulse oximetry. Which of the following findings might indicate an inaccurate reading? a. The patient has a core body temperature of 97.8 F (36.6 C) b. The heart rate obtained through pulse oximetry does not correlate with the ECG heart rate c. The pt has the probe attached to their index finger d. The pt's pulse oximetry is 95% and the pt denies shortness of breath - Correct Answer ️️ -b Which structures is/are located in the lower respiratory tract? Select all that apply a. Alveoli b. Larynx c. Pharynx d. Trachea - Correct Answer ️️ -a,d Which diagnostic test/exam would best measure a client's level of hypoxemia? a. Chest x-ray b. Pulse oximeter reading c. Arterial blood gas d. Peak expiratory flow rate - Correct Answer ️️ -c Which of the following is not a function of the respiratory system? a. Acid-base balance b. Temperature regulation c. Fluid balance d. Tissue perfusion - Correct Answer ️️ -d. Explanation: The circulatory system is responsible for tissue perfusion, not the respiratory system. Acid/base balance, temperature regulation, and fluid balance are all functions of the respiratory system. Why is nasal breathing more effective than mouth breathing is? - Correct Answer ️️ - More effective in cleaning, filtering and warming your air then the mouth does Which of the following structures actively participates in gas exchange? a. Bronchi b. Visceral pleura c. Respiratory bronchioles d. Terminal bronchioles - Correct Answer ️️ -c. Explanation: The respiratory bronchioles participate in the princess of gas exchange (respiration). The other structures are involved in the process of ventilation or movement of oxygen to the level of the alveoli. Which of the following indicates an abnormal assessment finding of the respiratory system? a. Symmetrical chest expansion b. Muscle restrictions with inhalation c. The sound of resonance with percussion of lung tissue d. Pink mucosa of the mouth and nares - Correct Answer ️️ -b. Explanation: Muscle retractions during inhalation indicate that significant respiratory effect is being demanded and thus use of the accessory muscles is required. All of the other assessment findings are normal assessment findings. You are caring for a patient who is currently receiving continuous pulse oximetry. Which of the following findings might indicate inaccurate readings? a. The patient has a core body temperature of 94 F (34.5 C) b. The heart rate obtained through pulse oximetry correlates with the electrocardiogram heart rate. c. The patient has the probe attached to her earlobe d. The patient's pulse oximetry is 95% and the patient denies shortness of breath - Correct Answer ️️ -a. Explanation: Pulse oximetry values obtained in individuals whose core body temperature is below normal levels should be interpreted cautiously because hypothermia is known to affect pulse oximetry values. All of the other findings are appropriate and do not impact the accuracy of the pulse oximetry reading. Which of the following is included in an arterial blood gas analysis? a. End-tidal CO2 b. Hemoglobin c. PaCO2 d. Sodium - Correct Answer ️️ -C. Explanation: PaCO2 is the partial pressure of carbon dioxide and is included in all arterial blood gas analysis. The other laboratory values are not included in an arterial blood gas. Which of the following is a finding attributable to age related changes? a. Kyphosis b. AP to lateral diameter of 1:1 c. PaCO2 of 47 on an ABG d. PaCO2 of 60 on an ABG - Correct Answer ️️ -d. Explanation: Aging procedures many changes in the respiratory system. Kyphosis and a barrel chest are expected in older adults due to changes in the thoracic cage, loss of lung compliance, and changes in vertebrae from osteoporosis. Older adults may experience hypercapnia, and increased levels of PaCO2. A PaCO2 reading of 60 is an indication of hypoxemia and should be treated immediately. The nurse is caring for John, a 42-year-old male who was admitted to the hospital for pneumonia. He has a past medical history of hypertension. Which of the following abnormal assessment findings should the nurse expect as a result of the history obtained from John? a. An AP to lateral diameter of 1:2 b. Vesicular lung sounds over the trachea c. A productive cough d. Symmetrical chest expansion - Correct Answer ️️ -c. Explanation: A productive cough while an abnormal assessment finding is expected in a patient who has pneumonia. The other findings are normal assessment findings. The provider has ordered an ABG analysis for a patient. The nurse has selected the left radial artery to collect the specimen, Which of the following is essential to ensure adequate perfusion during the procedure? a. Placing the specimen immediately on ice following the collection b. Assessing for left ulnar artery perfusion c. Holding pressure for 30 seconds post procedure d. Assessment of the radial pulse - Correct Answer ️️ -b. Explanation: The nurse needs to assess perfusion of the ulnar artery prior to completing the arterial blood gas, since disruption of the radial arterial during specimen collection without sufficient ulnar artery blood supply results in hypoxia of tissue to the hand. Assessing radial pulse doesn't demonstrate adequate perfusion during the procedure. Which of the following assessment findings indicates an emergency and the need for immediate action on the part of the nurse? a. Clubbing of the fingernails b. Concentration of the diaphragm c. Tracheal deviation d. Auscultation of rhonchi throughout the lungs - Correct Answer ️️ -c. Explanation: Tracheal deviation demonstrates unequal intrathoracic pressure and is ass