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

Author Question: In patients with closed-head injuries, what may happen in the presence of hypercapnia? a. High ... (Read 66 times)

sdfghj

  • Hero Member
  • *****
  • Posts: 552
on: Jul 16, 2018
In patients with closed-head injuries, what may happen in the presence of hypercapnia?
 
  a. High CO2 increases the risk of psychotic events.
  b. High CO2 levels cause cerebral vasodila-tion and improved oxygenation.
  c. Severe cerebral vasoconstriction results in anoxia and stroke.
  d. Vasodilation causes increased intracranial pressure and possibly stops blood flow.

Question 2

You observe a patient's breathing pattern as very irregular, with periods of breathing interspersed with long periods of apnea. Which of the following terms would you use in charting this obser-vation?
 
  a. Apneustic breathing
  b. Biot's respiration
  c. Cheyne-Stokes breathing
  d. Kussmaul's breathing


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

vboyd24

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
Increased PCO2 dilates cerebral vessels, raising cerebral blood flow, whereas decreased PCO2 constricts cerebral vessels and reduces cerebral blood flow. In patients with traumatic brain inju-ry, the brain swells acutely; this raises the intracranial pressure in the rigid skull to such high lev-els that blood supply to the brain might be cutoff, causing cerebral hypoxia (ischemia). That is, high intracranial pressure may exceed cerebral arterial pressure and stop blood flow.

Answer to Question 2

ANS: B
Biot's respiration is similar to Cheyne-Stokes respiration, except that tidal volumes are of identi-cal depth.


sdfghj

  • Member
  • Posts: 552
Reply 2 on: Jul 16, 2018
Excellent

bigsis44

  • Member
  • Posts: 317
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Gate Control Theory, Gate control, Open gate, Closed gate, Pain, Nerve transmission of pain, Pain ma Gate Control Theory, Gate control, Open gate, Closed gate, Pain, Nerve transmission of pain, Pain ma
Example of the Index to Diseases and Injuries. Example of the Index to Diseases and Injuries.
Head-tilt, chin-lift maneuver. Head-tilt, chin-lift maneuver.
High rates of rural poverty have been a part of the United States from its origin to the present. ... High rates of rural poverty have been a part of the United States from its origin to the present. ...
Structural MRIs reveal cortical loss in adolescent patients with schizophrenia. Here dark blue ... Structural MRIs reveal cortical loss in adolescent patients with schizophrenia. Here dark blue ...
Alpine tundra. Low-growing, hardy plants at a high altitude in Washington’s Cascade range. Alpine tundra. Low-growing, hardy plants at a high altitude in Washington’s Cascade range.
Video: DNA close up Animation

For a complete list of videos, visit our video library