Drug which crosses the placental barrier is:
- A. Phenytoin
- B. Diazepam
- C. Corticosterioids
- D. All of the above
Correct Answer: D
Rationale: All listed drugs cross the placenta, affecting the fetus.
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An older adult experiencing shortness of breath is brought to the hospital by her daughter. While obtaining the medication history from the patient and her daughter, the nurse discovers that neither has a list of the patient's current medications or prescriptions. The patient has a weekly pill dispenser that contains four different pills. The prescriptions are filled through the local pharmacy. Which resource would be appropriate to use in determining the medication names and doses?
- A. Martindale-The Complete Drug Reference
- B. Drugs and Facts Comparisons
- C. Senior citizens' center
- D. Patient's home pharmacy
Correct Answer: D
Rationale: The patient's pharmacy maintains an accurate record of all current medications, making it the best resource for identifying the drugs and doses.
The nurse admits a patient to the unit and learns the patient has recently been diagnosed with chronic renal failure but has not informed the primary care provider of this diagnosis. What is the nurse's first priority?
- A. Administer medications ordered immediately.
- B. Maintain the patient's confidentiality.
- C. Call the admitting physician immediately.
- D. Provide teaching about chronic renal failure
Correct Answer: C
Rationale: Renal failure affects drug clearance; informing the physician ensures safe therapy adjustments.
A nursing instructor is preparing a teaching plan for a group of nursing students about pharmacology. When describing this topic, the instructor would focus the discussion on which of the following as an essential aspect?
- A. Drug name
- B. Drug class
- C. Drug action
- D. Drug source
Correct Answer: C
Rationale: Pharmacology is the study of drugs and their action on living organisms. Thus, an essential aspect of pharmacology is drug action. An understanding of the drug name, drug class, and drug source is important, but the most critical aspect related to pharmacology is how the drug acts in the body.
Which of the following is a disadvantage of IM administration?
- A. Larger volumes can be used
- B. Can affect lab tests
- C. Painful
- D. B and C
Correct Answer: C
Rationale: Intramuscular (IM) administration is painful due to needle insertion, though larger volumes are an advantage; affecting lab tests is less specific, making C the primary disadvantage.
A patient comes to the ER having his quadriceps muscle constantly contracted, you should give him:
- A. Norepinephrine to stimulate the sympathetic nervous system
- B. An antagonist for Norepinephrine
- C. Agonist for acetylcholine
- D. Both B and C
Correct Answer: D
Rationale: Both B and C are correct: a norepinephrine antagonist (e.g., beta-blocker) or acetylcholine agonist (e.g., to relax via parasympathetic action) could relieve muscle contraction.