Which potential poison is a natural element present in water and soil that is easily absorbed by the roots of rice plants?
A) toluene
B) digitalis
C) arsenic
D) phosphorus
C) arsenic
Arsenic is a natural element that is present in water and soil and is easily absorbed by the roots of rice plants. Arsenic is a cellular toxin that is readily absorbed through the GI tract and lungs. Poison may cause neurotoxic effects and multisystem organ failure.
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Which of the following is true about iron absorption?
a. It occurs primarily in the stomach. b. Phytates and tannates enhance its absorption. c. Ascorbic acid inhibits its absorption. d. It must be in ferrous form for absorption.
Which of the following is a general seizure?
A) partial B) myoclonic C) Jacksonian D) autonomic
Pralidoxime is useful in treating nerve agent exposure because it:
a. Antagonizes the bradycardia associated with nerve agent exposure b. Causes sympathetic stimulation that counteracts the excessive parasympathetic stimulation c. Pralidoxime is contraindicated in situations where a patient has been exposed to a nerve agent d. Frees the bound acetylcholinesterase so that it can then remove the acetylcholine from receptor sites in the synapse
You are assessing a patient who has chronic kidney failure. He tells you that his glomerular filtration rate is 40 mL/minute. Which of the following GFR would indicate a normal filtration rate?
A) 3 L/hour B) 7 L/hour C) 30 mL/minute D) 75 mL/minute