Download Chapter 9 Homeostasis and Circulation - Case Study 1

Chapter 9 Homeostasis and Circulation - Case Study 1
“Evaluating fussiness in a baby is tricky...”
Discover Magazine, August, 2004
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What is the pericardium?
What is a pericardial effusion?
What does EKG stand for? How is it done and what does it measure?
Sketch and label a typical reading from an electrocardiogram.
What is considered a normal heart rate for adults? For infants like this one?
What does tachycardia mean?
What is the sinoatrial node?
What is CHF? What happens if someone has CHF?
What symptoms led him to believe it could be CHF?
Describe three methods used to slow down the patient’s rapid heart beat.
To access the Vital Signs excerpts online, go to http://discovermagazine.com (No www) and click on
Archives near the upper right corner of the page. Click on the year of the excerpt. You should see that year
bolded above the other years. Click on the desired month and look for the Vital Signs excerpts (often listed
under Departments on the right side of the page).
Chapter 9 Homeostasis and Circulation - Case Study 2
“Was this a simple case of pneumonia or something much worse?”
Discover Magazine, February, 2003
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What is normal blood pressure and explain the meaning of the numbers?
What is hypertension?
Research possible causes for increased blood pressure in this 65 year old patient.
Describe two of the more common ways in which a heart can fail.
How is congestive heart failure different from a heart attack?
Explain how nitroglycerin can temporarily relieve the effects of congestive heart failure.
How were a) sepsis and b) pneumonia ruled out as a cause for the patient’s symptoms?
What is cardiac output? What two things determine cardiac output? Think: ___ x ___
How do the kidneys respond to cardiac output which is too low (ex. as the heart fails)?
What is edema? How does congestive heart failure cause build up of fluid or swelling in the
tissues? Which tissues tend to swell or show signs of fluid build up?
Chapter 9 Homeostasis and Circulation - Case Study 3
“A Swollen Area Grows Larger and Larger”
Discover Magazine, June, 2005
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How do tumors, lymph nodes and cysts tend to feel?
What did they do in this case to rule out a tumor?
What are lymph vessels?
Name some of the materials which are found in lymph.
How does lymph move along the lymph vessels?
What are lymph nodes and what do they do?
Why do lymph nodes swell when you have an infection?
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Describe how lymph may re-enter the bloodstream.