Question 1

When should 50% dextrose be avoided unless hypoglycemia is confirmed?&#10;A)Stroke&#10;B)Head Trauma&#10;C)Both A and B&#10;D)Neither A nor B

Accepted Answer

Dextrose (50%) should be avoided unless hypoglycemia is confirmed in stroke or head trauma patients. This is due to the increased intracranial pressure from a stroke or head trauma. Dextrose has been shown to increase intracranial pressure and worsen neurological outcomes; therefore unless hypoglycemia is confirmed, dextrose should not be used. In hypoglycemic patients the correct dose for 50% dextrose is 25g. It is usually packaged as 25 g in 50 ml solution that is labeled as 50% dextrose in water.

Question 2

Cerebral hypoxia is a serious condition that can be addressed when the early signs are noticed. What is/are the early sign (s) of cerebral hypoxia?&#10;A)Restlessness&#10;B)Shock&#10;C)Hypoperfusion&#10;D)All of the above

Accepted Answer

Restlessness is an early sign of cerebral hypoxia, along with anxiety. This is a result of diminished perfusion and oxygenation of cerebral tissue. An alteration in the patient's level of consciousness, disorientation, and confusion are signs of Hypoperfusion and hypercapnia may lead to cerebral hypoxia.

Question 3

What has a direct and inverse relationship with hydrogen ion concentration?&#10;A)Nucleus&#10;B)pH value&#10;C)Membrane tissue&#10;D)Bile

Accepted Answer

Hydrogen ion concentration has a direct and inverse relationship with pH value. It is inversely proportionate to the pH value. An increase in hydrogen ions will cause the Ph value to drop, whereas a decrease in hydrogen ion concentration will cause the pH value to increase.

Question 4

Which of the following substances can be used in order to prevent toxins from entering the bloodstream?&#10;A)Activated charcoal&#10;B)Oxygen&#10;C)Calcium carbonate&#10;D)Magnesium sulfide

Accepted Answer

Activated charcoal will prevent toxins from entering the bloodstream in the case of a poisoning.

Deck 3: Medical