ATI RN
Intro to Pharmacology ATI Quizlet Questions
Question 1 of 5
Which route should lithium be administered by?
Correct Answer: A
Rationale: Lithium is typically administered orally (PO) for long-term treatment of bipolar disorder. However, in emergency situations or cases of lithium toxicity where rapid control of symptoms is required, lithium can be administered via the intravenous (IV) route for faster absorption and effectiveness. IV administration allows for quick delivery of the medication directly into the bloodstream to achieve therapeutic levels promptly. It is essential to closely monitor lithium levels and kidney function when administering it intravenously to prevent potential complications.
Question 2 of 5
Route of drug administration where the drug is placed directly into the GIT from where absorption occurs.
Correct Answer: A
Rationale: Enteral route of drug administration involves placing the drug directly into the gastrointestinal tract (such as oral or rectal routes) for absorption into the systemic circulation. This route requires the drug to pass through the digestive system before being absorbed, allowing for slower and more sustained release of the medication compared to other routes. Examples of enteral drug administration include oral tablets, capsules, and liquids as well as rectal suppositories.
Question 3 of 5
Which of the following is defined as the least stimulus intensity at which a subject perceives pain?
Correct Answer: A
Rationale: The pain threshold is defined as the least stimulus intensity at which a subject perceives pain. It represents the point at which a person first acknowledges experiencing pain. Pain threshold varies among individuals and can be influenced by various factors such as genetics, emotional state, culture, and past experiences with pain. It is an important concept in understanding an individual's sensitivity to pain and can be different from their pain tolerance level, which refers to the maximum level of pain a person is willing to endure. Analgesia involves the relief of pain, nociception is the body's physiological response to noxious stimuli, and polymodal refers to nerve fibers that respond to multiple types of stimuli.
Question 4 of 5
A patient is admitted to the hospital with multidrug-resistant urinary tract infection. Laboratory tests show Pseudomonas aeruginosa. Colistimethate sodium is ordered by intramuscular injection. The nurse understands that which of the following is the purpose for this drug?
Correct Answer: B
Rationale: Colistimethate sodium is a polymyxin antibiotic used to treat multidrug-resistant Gram-negative infections, including Pseudomonas aeruginosa. It is not safe for patients with renal impairments and does not prevent antibiotic resistance. Its primary purpose is to treat infections caused by resistant Gram-negative bacteria.
Question 5 of 5
The patient takes labetalol and is scheduled for surgery. The anesthesiologist plans to use halothane as one of the anesthetic agents. The nurse consults with the anesthesiologist to ensure awareness the patient’s medication history knowing that the combination of labetalol and halothane will have what effect?
Correct Answer: A
Rationale: There is increased risk of excessive hypotension if any of these drugs is combined with volatile liquid general anesthetics such as enflurane, halothane, or isoflurane. The effectiveness of diabetic agents is increased, leading to hypoglycemia when such agents are used with these drugs. Carvedilol has been associated with potentially dangerous conduction system disturbances when combined with verapamil or diltiazem. Vomiting is not associated with this combination of drugs. The nurse should communicate the patient’s medication history to the anesthesiologist to ensure safe administration of anesthesia.