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 89 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 average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

External and cross-sectional view of an infarct caused by a myocardial infarction. External and cross-sectional view of an infarct caused by a myocardial infarction.
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
Ethical issues and aging Ethical issues and aging
Severe hash is almost always caused by cylinder misfire conditions. Severe hash is almost always caused by cylinder misfire conditions.
A rectangular-shaped fuel rail is used to help dampen fuel system pulsations and noise caused by ... A rectangular-shaped fuel rail is used to help dampen fuel system pulsations and noise caused by ...
The Zones of Injury Commonly Caused by a Thermal Burn The Zones of Injury Commonly Caused by a Thermal Burn
Video: Contraction cycle of a sarcomere

For a complete list of videos, visit our video library