« previous next »

Author Question: If the patient's dorsal columns are not functioning, the nurse will observe which of the following ... (Read 52 times)

james0929

  • Hero Member
  • *****
  • Posts: 586
on: Jun 25, 2018
If the patient's dorsal columns are not functioning, the nurse will observe which of the following responses during neurotesting,
 
  where the nurse asks the patient to close his eyes and then proceeds to touch corresponding parts of the body on each side simultaneously with two sharp points?
  A)
  Grimacing when body touched with sharp points
  B)
  No response to two-point discrimination
  C)
  Heightened proprioceptive response
  D)
  Inability to identify which way his finger was moved during the test

Question 2

Which of the following diagnostic findings is likely to result in the most serious brain insult?
 
  A)
  Mean arterial pressure (MAP) that equals intracranial pressure (ICP)
  B)
  Moderate decrease in brain tissue volume secondary to a brain tumor removal
  C)
  Increased ICP accompanied by hyperventilation
  D)
  High intracellular concentration of glutamate


joanwhite

  • Sr. Member
  • ****
  • Posts: 308
Reply #1 on: Jun 25, 2018
Answer to Question 1

Ans:
B

Feedback:

When comparing the discriminative dorsal column-medial lemniscus pathway with anterolateral tactile pathways with testing (with eyes closed), gently brush the skin with cotton, touch an area with one or two sharp points, touch corresponding parts of the body on each side simultaneously or in random sequence, and passively bend the person's finger one way and then another. If dorsal columns are not functioning, the tactile threshold two-point discrimination and proprioception are missing, and the person has difficulty discriminating which side of the body received stimulation.

Answer to Question 2

Ans:
A

Feedback:

When the pressure in the cranial cavity approaches or exceeds the MAP, tissue perfusion becomes inadequate; cellular hypoxia results; and neuronal death may occur. Displacement of CSF and blood can partially compensate for decreased brain tissue volume. Hyperventilation partially mitigates, rather than exacerbates, increase in ICP. Glutamate is normally in far higher concentrations intracellularly than extracellularly.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Nurses may collaborate with social workers, physicians, and other members of the health care team to Nurses may collaborate with social workers, physicians, and other members of the health care team to
Patient Position for Posterior Percussion Patient Position for Posterior Percussion
Mammography. (a) A health-care professional assists the patient to ensure the breast is placed ideal Mammography. (a) A health-care professional assists the patient to ensure the breast is placed ideal
The approval of a new drug is a four-stage process: (1) preclinical investigation, (2) clinical inve The approval of a new drug is a four-stage process: (1) preclinical investigation, (2) clinical inve
Amniocentesis. The patient is examined with ultrasound to determine the placental site and to locate ... Amniocentesis. The patient is examined with ultrasound to determine the placental site and to locate ...
Pneumonia patient’s chest x-ray. Note the irregular areas of density. Pneumonia patient’s chest x-ray. Note the irregular areas of density.
Video: Premenstrual Syndrome

For a complete list of videos, visit our video library