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 64 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
YES! Correct, THANKS for helping me on my review

irishcancer18

  • Member
  • Posts: 310
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Among non-Muslims in the United States, wearing a head scarf, or a khimar, is a personal fashion ... Among non-Muslims in the United States, wearing a head scarf, or a khimar, is a personal fashion ...
Cloud Types: High Clouds Cloud Types: High Clouds
Head of A Woman Head of A Woman
Types of Blast Injuries (Part 1 of 2) Types of Blast Injuries (Part 1 of 2)
Video: Tuberculosis Testing

For a complete list of videos, visit our video library