This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following physiologic changes caused by aging is the most likely contributor to the ... (Read 88 times)

plus1

  • Hero Member
  • *****
  • Posts: 676
on: Jun 25, 2018
Which of the following physiologic changes caused by aging is the most likely contributor to the high mortality rate in older trauma patients compared with younger trauma patients?
 
  a. Deterioration of cerebral and motor skills
  b. Poor vision and hearing
  c. Diminished pain perception
  d. Limited cardiovascular physiologic reserve in the elderly

Question 2

A patient with multisystem trauma has been in the ICU for 6 days after sustaining a closed head injury, a right-sided pneumothorax, right rib fractures, a grade IV liver laceration, a pancreatic contusion, and a right acetabular fracture
 
  The patient is still intubated and mechanically ventilated and has a chest tube, Foley catheter, and two abdominal drains. The patient's hemodynamic assessment reveals the following values: BP, 94/66 mm Hg; HR, 118 beats/min; T, 38.7  C; CVP, 5 cm H2O; wedge pressure, 6 mm Hg; cardiac index, 6.1; and systemic vascular resistance, 450 dynes/sec. What is the most likely cause of this hemodynamic picture?
 
  a. Septic shock
  b. Hemorrhagic shock
  c. Cardiogenic shock
  d. Neurogenic shock


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

duy1981999

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jun 25, 2018
Answer to Question 1

D
Older adults have limited ability to increase their heart rate in response to blood loss, obscuring one of the earliest signs of hypovolemiatachycar dia. Loss of physiologic reserve and the presence of pre-existing medical conditions are likely to produce further conflicting hemodynamic data. An older patient's lack of physiologic reserve makes it imperative that early nutritional support is initiated.

Answer to Question 2

A
The patient with multiple injuries is at risk for overwhelming infections and sepsis. The source of sepsis in the trauma patient can be invasive therapeutic and diagnostic catheters or wound contamination with exogenous or endogenous bacteria. The source of the septic nidus must be promptly evaluated. Gram stain and cultures of blood, urine, sputum, invasive catheters, and wounds are obtained.


plus1

  • Hero Member
  • *****
  • Posts: 676
Reply #2 on: Jun 25, 2018
Correct answers!


duy1981999

  • Sr. Member
  • ****
  • Posts: 341
Reply #3 on: Jun 25, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Carbuncles caused by S. aureus. Carbuncles caused by S. aureus.
Physiologic changes occurring during shock and their pharmacologic interventions. Physiologic changes occurring during shock and their pharmacologic interventions.
Diagram Showing How Conduction Aphasia is Caused Diagram Showing How Conduction Aphasia is Caused
Acromegaly caused by a tumor on his pituitary gland Acromegaly caused by a tumor on his pituitary gland
Disorders and conditions that can be caused or aggravated by stress Disorders and conditions that can be caused or aggravated by stress
Normal physiologic mechanisms of the body that restore homeostasis to the balance of serum calcium Normal physiologic mechanisms of the body that restore homeostasis to the balance of serum calcium
Video: Interspecific Competition Relationship - Competitive & Niche Differentiation

For a complete list of videos, visit our video library