Nokea
The first-line treatment for cough related to an upper respiratory tract infection (URI) in a 5-year-old child is:
- A. Fluids and symptomatic care
- B. Dextromethorphan and guaifenesin syrup (Robitussin DM for Kids)
- C. Guaifenesin and codeine syrup (Tussin AC)
- D. Chlorpheniramine and dextromethorphan syrup (Nyquil for Kids)
Correct Answer: A
Rationale: Fluids and symptomatic care are safest and recommended for URI cough in young children; cough suppressants are discouraged under 6.
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A nurse is providing discharge instructions for a client who has a new prescription for an antihypertensive medication. Which of the following statements should the nurse give?
- A. Be sure to limit your potassium intake while taking the medication.
- B. You should check your blood pressure every 8 hours while taking this medication.
- C. Your medication dosage will be increased if you develop tachycardia.
- D. Change positions slowly when you move from sitting to standing.
Correct Answer: D
Rationale: Antihypertensives can cause orthostatic hypotension; changing positions slowly prevents dizziness or falls.
A patient has come to the clinic and been diagnosed with Lyme disease. The physician has ordered oral tetracycline. What is important for the nurse to include in the teaching plan about tetracycline? (Select all that apply.)
- A. Do not take the drug with anything high in sodium content to keep from producing a state of hypernatremia in the body.
- B. Do not take the drug with foods or other drugs that contain calcium.
- C. Avoid eating bananas at the same time you take this drug as the potassium content of the tetracycline can produce hyperkalemia in the body.
- D. Avoid exposure to the sun when taking this drug as it can turn your skin purple.
Correct Answer: B
Rationale: The antibiotic tetracycline is not absorbed from the gastrointestinal (GI) tract if calcium or calcium products (e.g., milk) are present in the stomach. It cannot be taken with iron products because a chemical reaction occurs preventing absorption. Although tetracycline can increase sun sensitivity, it does not turn the skin purple. Patients who take tetracycline do not need to avoid eating bananas or foods that are high in potassium.
A pharmacology student asks the instructor what an accurate description of a drug agonist is. What is the instructors best response?
- A. A drug that reacts with a receptor site on a cell preventing a reaction with another chemical on a different receptor site
- B. A drug that interferes with the enzyme systems that act as catalyst for different chemical reactions
- C. A drug that interacts directly with receptor sites to cause the same activity that a natural chemical would cause at that site
- D. A drug that reacts with receptor sites to block normal stimulation, producing no effect
Correct Answer: C
Rationale: Agonists are drugs that produce effects similar to those produced by naturally occurring neurotransmitters, hormones, or other substances found in the body. Noncompetitive antagonists are drugs that react with some receptor sites preventing the reaction of another chemical with a different receptor site. Drug-enzyme interactions interfere with the enzyme systems that stimulate various chemical reactions.
Drug absorbed by active transport is
- A. Propranolol
- B. Ergotamine
- C. Levodopa
- D. Amantidine
Correct Answer: C
Rationale: Levodopa uses active transport via amino acid carriers in the gut.
A nurse is assessing a client who is taking Digoxin to treat heart failure. Which of the following findings is a manifestation of digoxin toxicity?
- A. Bruising
- B. Report of metallic taste
- C. Muscle pain
- D. Report of anorexia
Correct Answer: D
Rationale: Anorexia is a common early sign of digoxin toxicity.