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.

Question

Want to see the full answer?

Answer 1

Question

Chapter 17, Problem 4CCS

Summary Introduction

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.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

21) Female,35 years old. She came to the clinic because of persistent precordial pain for 2 days. Physical examination: frictional sounds can be heard in the fourth rib space on the left side of the sternum,which can still be heard after holding the breath. The ECG suggests bow-dorsal downward elevation of the ST seament in the conventionai leads. What is her most likely clinical diagnosis? A Acute myocardial infarction() B Variant angina C Acute pleurisy D Acute pericarditis E Acute pulmonary embolism

K.R. is a 46-year-old man admitted to the emergency department with unremitting chest discomfort. The pain started while he was shoveling snow from his walkway. He had experienced chest discomfort with activity previously, but the pain had subsided with rest and he sought no medical help. This time the pain did not subside and became increasingly severe, radiating to his left arm and lower jaw. In the emergency department, an ECG and cardiac enzymes were obtained. The cardiac monitor showed sinus tachycardia with occasional premature ventricular complexes. After receiving results of his ECG and cardiac enzymes, the physician diagnoses K.R. with a myocardial infarction (MI). What electrocardiographic (ECG) changes would indicate that K.R. is experiencing a MI? (List 3 ECG changes that would indicate MI.) What changes in “cardiac enzymes” would be consistent with a diagnosis of MI? (List and describe 3 cardiac enzyme changes consistent with MI.) What is the most common…

K.R. is a 46-year-old man admitted to the emergency department with unremitting chest discomfort. The pain started while he was shoveling snow from his walkway. He had experienced chest discomfort with activity previously, but the pain had subsided with rest and he sought no medical help. This time the pain did not subside and became increasingly severe, radiating to his left arm and lower jaw. In the emergency department, an ECG and cardiac enzymes were obtained. The cardiac monitor showed sinus tachycardia with occasional premature ventricular complexes. After receiving results of his ECG and cardiac enzymes, the physician diagnoses K.R. with a myocardial infarction (MI). What drug treatment would you expect to administer for the pain associated with MI? Why? (List 2 drugs that would help treat the pain associated with MI. Explain why these drugs are helpful in reducing pain.) What medical treatment, other than medications, would you expect K.R. to undergo for MI? Briefly…