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 43 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?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

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?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Young boy with characteristic nasal crease from the repeated action of the “nasal salute” caused ... Young boy with characteristic nasal crease from the repeated action of the “nasal salute” caused ...
Intussusception. The condition is caused by an infolding of the small intestine, which often causes Intussusception. The condition is caused by an infolding of the small intestine, which often causes
Hematoma. A hematoma around the right eye caused by an injury. A hematoma is the result of bleeding Hematoma. A hematoma around the right eye caused by an injury. A hematoma is the result of bleeding
The Masses, a leading Socialist magazine, featured drawings by artists, including John Sloan, as wel The Masses, a leading Socialist magazine, featured drawings by artists, including John Sloan, as wel
Physiologic changes occurring during shock and their pharmacologic interventions. Physiologic changes occurring during shock and their pharmacologic interventions.
This patient presented with a case of facial palsy caused by an infection by the bacterial ... This patient presented with a case of facial palsy caused by an infection by the bacterial ...
Video: Control of ventilation rate by other brain centers (posts, hypothalamus & cerebral cortex)

For a complete list of videos, visit our video library