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 66 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?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Placenta previa. The condition is caused by the development of the placenta over the cervical canal, Placenta previa. The condition is caused by the development of the placenta over the cervical canal,
Prolapsed uterus. (a) A prolapse is the abnormal drop of the uterus into the vagina, representing th Prolapsed uterus. (a) A prolapse is the abnormal drop of the uterus into the vagina, representing th
National Institute on Aging Web site is designed to be easy to use by older adults. It utilizes ... National Institute on Aging Web site is designed to be easy to use by older adults. It utilizes ...
Severe hash is almost always caused by cylinder misfire conditions. Severe hash is almost always caused by cylinder misfire conditions.
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 ...
Aging and Fluid, Electrolyte, and Acid-Base Homeostasis Aging and Fluid, Electrolyte, and Acid-Base Homeostasis
Video: Regulation of GFR: autoregulation via myogenic mechanism Myogenic mechanism

For a complete list of videos, visit our video library