Case summary:
In an accident, a male bus driver suffered blunt trauma to the chest and was brought to the emergency room. The patient was unconscious and after regaining consciousness complained of the left upper quadrant, chest, and epigastric pain. Upon further examination, tachycardia (110 beats per minute) and blood pressure of 105/675 was observed. After a while, there was a sudden rapid drop in the blood pressure. This is accompanied by muffled heart sounds, bulging neck veins, and thready pulse. After this, the patient suddenly complains of pain in the injury site.
Characters in the case:
Donald Ayers.
Adequate information:
The sudden drop in the blood pressure accompanied by muffled sounds in the heart and thread pulse is observed.
To determine:
The changes in the EDV (end-diastolic volume) resulting in muffled heart sounds, which are quieter and less distinct.
Want to see the full answer?
Check out a sample textbook solutionChapter 17 Solutions
Anatomy & Physiology Plus Mastering A&P with Pearson eText -- Access Card Package (6th Edition)
- John, an overweight 49-year-old man with history of diabetes and hypertension is playing soccer. After half an hour of an intense game, he feels severe chest pain that travels to his lower jaw. He is pale, diaphoretic, and short in breath. Upon arrival to the ER, an ECG was taken and the results show the following (note the changes in leads II, III and aVF):  What actions should John’s teammates have taken at the scene to help him?arrow_forwardHigh-pressure environments have a profound effect on the cardiopulmonary system. What are they?arrow_forwardIf a patient presented at the ER with chest pain, then how would they distinguish whether he was having angina vs an actual MI?arrow_forward
- During a cardiac angiogram, it is discovered that a 58-year-old patient has moderate stenosis of the left circumflex artery. Which chamber of the heart would be impacted by this blockage?arrow_forwardIf bradycardia (heart rate less than 60 beats per minute) with a pulse is associated with cardiopulmonary compromise despite effective oxygenation and ventilation, what is the next step in management?arrow_forwardWhat is the reason for coloring blood vessels red and blue in drawings? Which vessels are usually colored red and which are usually colored blue? Why?arrow_forward
- Essentials of Pharmacology for Health ProfessionsNursingISBN:9781305441620Author:WOODROWPublisher:CengageHuman Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningBasic Clinical Lab Competencies for Respiratory C...NursingISBN:9781285244662Author:WhitePublisher:Cengage