A 64-year-old female was admitted for removal of a ruptured appendix. Her medical history was unremarkable except for a case of rheumatic fever as a child that left her with an audible heart murmur
Three months after the surgery, she saw her physician complaining of fever, chills, fatigue, and dizziness for several weeks. The physician noted that her heart murmur was much more pronounced. He ordered two sets of blood cultures to be drawn. Both sets of blood cultures grow gram-positive cocci in pairs and chains. The gray, gamma-hemolytic colony is catalase negative. It hydrolyzes esculin in the presence of bile and grows in 6.5% salt broth. Given this patient history and organism isolated, the infectious disease present is
A) Acute bacterial endocarditis B) Subacute bacterial endocarditis
C) Transient bacteremia D) Septic shock
B
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Your patient is a 73-year-old man who is sitting in a recliner, cyanotic, pulseless, and apneic. The patient's skin is cool and dry. The patient's wife last saw him an hour and a half ago. Which of the following should you do first?
A) Check for rigor mortis. B) Start CPR. C) Attach the monitor/defibrillator. D) Inform the patient's wife that he is dead and nothing can be done for him.
A young girl with end-stage cancer is unresponsive, not breathing, and pulseless. Her mother and father are by her side, both crying as you start resuscitation. Which statement indicates the most appropriate thing you could say to the parents as you begin?
A) "I think that it would be best for you both to leave the room so we can care for your daughter." B) "If you feel comfortable, it's okay to stay and watch how we care for your daughter." C) "It is important not to cry since she may still be able to hear you and needs you to be strong for her." D) "I can show you how to do chest compressions so that you can take part in caring for your daughter."
A patient has an accelerated junctional rhythm. When you record the ECG, the tracing shows that the P waves follow the QRS complexes and that the distance from each P wave to the next R wave is 0.6 seconds. What is the PR interval?
A. 0.6 seconds B. 1.2 seconds C. 0.12 seconds D. The interval cannot be determined.
Which of the following systems is responsible for releasing chemicals that regulate body activities?
A. Cardiovascular B. Endocrine C. Skeletal D. Nervous