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37.A medical patient rings her call bell and expresses alarm to the nurse, stating, “I've just coughed up this blood. That can't be good, can it?” How can the nurse best determine whether the source of the blood was the patient's lungs?A)Obtain a sample and test the pH of the blood, if possible.B)Try to see if the blood is frothy or mixed with mucus.C)Perform oral suctioning to see if blood is obtained.D)Swab the back of the patient's throat to see if blood is present.Ans:BFeedback:Though not definitive, blood from the lung is usually bright red, frothy, and mixed withsputum. Testing the pH of nonarterial blood samples is not common practice and wouldnot provide important data. Similarly, oral suctioning and swabbing the patient's mouth would not reveal the source.38.The nurse is completing a patient's health history with regard to potential risk factors for lung disease. What interview question addresses the most significant risk factor for respiratory diseases?39.A patient on the medical unit has told the nurse that he is experiencing significant dyspnea, despite that he has not recently performed any physical activity. What assessment question should the nurse ask the patient while preparing to perform a physical assessment?Page 14
40.The nurse has assessed a patient's family history for three generations. The presence of which respiratory disease would justify this type of assessment?Page 15