Which of the following substances is NOT likely to cross a placenta?
A) An ionized or water-soluble substance
B) Tetracycline
C) Nicotine
D) Alcohol
A) An ionized or water-soluble substance
Ionized or water-soluble substances are not likely to cross the placenta. The "placental barrier" usually allows fat-soluble chemicals to cross.
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When a special cannula is inserted through the cricothyroid membrane to provide ventilation and oxygenation when the airway cannot be maintained because of obstruction is which of the following?
a. FROPVD b. RSI ET c. BIAD d. TLJV
A child has been pulled from the pool after being submerged for less than 30 seconds. The child is crying and hyperventilating, as well as coughing up water and vomiting. The EMT should:
A) Place the child prone to help evacuate water from the lungs B) Administer abdominal thrusts with the child in a supine position C) Place the child on his side and initiate a primary assessment D) Provide supplemental oxygen
Most of the fat in our diet is in the form of triglycerides
Indicate whether the statement is true or false
What is defined as anything that occupies space and has mass?
What will be an ideal response?