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 44 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 Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Steric effects caused by ligand binding to the heme of myoglobin Steric effects caused by ligand binding to the heme of myoglobin
Ethical issues and aging Ethical issues and aging
New Yorkers flee from the dust caused by the collapse of the twin towers of the World Trade Center f New Yorkers flee from the dust caused by the collapse of the twin towers of the World Trade Center f
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 ...
Examples of Human Disorders Caused by Single-Gene Mutations Examples of Human Disorders Caused by Single-Gene Mutations
Video: Electrical Conduction System of the Heart

For a complete list of videos, visit our video library