Bloodletting, a treatment devised centuries ago to restore the balance of humors, was accomplished with the use of O needles O leeches O tourniquets O bacteria
Added by Amy E.
Close
Step 1
Step 1: Bloodletting is the process of drawing blood from a patient. Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 66 other Psychology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
An obsolete treatment for syphilis involved inducing fever by deliberately infecting patients with the agent of relapsing fever. An experimental AIDS treatment involved infecting patients with malaria to induce high fevers. Can you provide some possible explanations behind these peculiar forms of treatment?
Sri K.
Blood Everywhere: A Case Study in Blood An ambulance arrives at the scene of an automobile accident, having been summoned by an in-vehicle security system. What the emergency personnel find is like a scene from a horror film. Maggie Silvers, the apparent driver of the car, is sitting slumped next to the vehicle, with blood covering her shirt and hands. Her car has clearly hit a tree: a branch is sticking into the driver's window, and the airbag has been deployed. Maggie looks dazed, and as the paramedics approach, she says with a mixture of panic and relief, "There's blood everywhere!" Maggie is only semi-lucid as she babbles on about pushing out the broken glass in her car window. Maggie, a 48-year-old woman, is indeed bleeding profusely from multiple left-arm cuts and an especially deep laceration on her left upper arm. The paramedics stop the bleeding and move her quickly to the ambulance, after noting no other apparent injury. Her systolic blood pressure is 80 mm Hg (low), and her diastolic is not audible (too low to hear). Her heart rate is 122 bpm (very rapid), and her skin is pale and clammy, indicating peripheral vasoconstriction (narrowing of her blood vessels, particularly in the skin) and circulatory shock-like signs. On the way to the hospital, a paramedic begins transfusing normal saline solution (NSS; water with some NaCl, similar to body fluids, given directly into her vein). A fast hematocrit (HCT) test upon Maggie's arrival at the emergency department (ED) indicates that her HCT is low but normal. Several vials of Maggie's blood are also sent to the lab for blood tests and typing. Two liters of NSS are transfused over the next hour while the ED physician sutures her deepest, left-upper-arm laceration. Despite no further bleeding since the paramedics treated her at the scene, Maggie's next HCT, tested one hour after the original HCT, drops to below normal. Aside from her present health problem, Maggie is otherwise healthy. She is admitted to the hospital for overnight observation.
Josee P.
A farmer working on a piece of machinery gets his shirtsleeve caught in a moving piece of the equipment. His shirt is sliced, and a sharp blade covered in mud slices through his upper arm. He attempts to control the bleeding and immediately seeks medical attention. After 3 days, he develops a fever and his arm becomes extremely swollen and painful. Pulling back the bandages, he finds that the wound has become blackened and is leaking bloody fluid. Microscopic analysis of the fluid reveals the presence of gram-positive bacilli.a. Discuss what condition the patient is suffering from and the likely causative agent of this infection.b. Explain how the patient contracted this pathogenic microbe and what virulence factors contributed to the pathogenesis seen at the wound site.c. In addition to antibiotics, the physician prescribes hyperbaric therapy. Describe what this treatment involves and how it could be therapeutic to this patient.
Keemin L.
Recommended Textbooks
Psychology Openstax
Myers' Psychology for AP
Psychology
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD