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

Author Question: Which of the following pulmonary function improvements have been associated with lung ... (Read 58 times)

lb_gilbert

  • Hero Member
  • *****
  • Posts: 588
on: Jul 16, 2018
Which of the following pulmonary function improvements have been associated with lung vol-ume-reduction surgery (LVRS) in patients with emphysema?
 
  1. Improved exercise endurance
  2. Improved FEV1
  3. Improved quality-of-life
  4. Improved survival
  a. 1, 3, and 4 only
  b. 2 and 4 only
  c. 3 only
  d. 2, 3, and 4 only

Question 2

What causes the degranulation of mast cells in asthma patients?
 
  a. Antigens attaching to IgE molecules on the mast cell surface.
  b. Antigens attaching to proteins receptors on mast cell surface.
  c. Irritant receptors on the mast cells are stimulated by antigens.
  d. Infectious particles attacking the mast cells.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Kedrick2014

  • Sr. Member
  • ****
  • Posts: 359
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: A
LVRS can prolong survival, improve quality-of-life, and increase exercise capacity.

Answer to Question 2

ANS: A
When a patient with asthma inhales an allergen to which he or she is sensitized, the antigen cross-links to specific IgE molecules attached to the surface of mast cells in the bronchial mucosa and submucosa. The mast cells degranulate rapidly (within 30 min), releasing multiple mediators including leukotrienes (previously known as slow-reacting substance of anaphylaxis SRS-A), histamine, prostaglandins, platelet-activating factor, and other mediators.


lb_gilbert

  • Member
  • Posts: 588
Reply 2 on: Jul 16, 2018
Excellent

Jsherida

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Hemodialysis. The process of hemodialysis replaces the kidney function of blood filtration by forcin Hemodialysis. The process of hemodialysis replaces the kidney function of blood filtration by forcin
How to approximate the area of a function using midpoints How to approximate the area of a function using midpoints
Other Factors Affecting Pulmonary Ventilation Other Factors Affecting Pulmonary Ventilation
Reciprocal function Reciprocal function
Sketch a graph of the inverse of each exponential function. Sketch a graph of the inverse of each exponential function.
Thyroid Function Thyroid Function
Video: TRH/TSH/Thyroid hormone

For a complete list of videos, visit our video library