You choose the safer drug action, the vital sign to check, and the teaching that belongs at the bedside. Five of the 15 questions include the correct answer and rationale. The other ten keep answers in the study hub. Continue with the RN exams exam guide or more RN exams practice questions.
Five pharmacology questions with answers
Cover the key. Write the first action. Then open the rationale and name why the other choices fail.
Question 1
Which one of the following is an established clinical use of morphine?
A. Management of generalized anxiety disorders
B. Relief of pain associated with biliary colic
C. Pulmonary congestion
D. Treatment of cough associated with use of ACE inhibitors
Show answer and rationale
Correct answer: C — Pulmonary congestion
Morphine, a potent opioid analgesic, is primarily used to manage moderate to severe pain, but its established clinical applications extend beyond analgesia. One well-documented use is in treating pulmonary congestion, particularly in acute pulmonary edema associated with heart failure. Morphine reduces preload by causing vasodilation, alleviating dyspnea and anxiety in these patients, though the exact mechanism is multifaceted and includes central effects on respiration. Managing generalized anxiety disorders is not a standard use, as anxiolytics like benzodiazepines are preferred. While morphine can relieve pain, its use in biliary colic is contraindicated because it causes sphincter of Oddi constriction, potentially worsening the condition. It is not a treatment for ACE inhibitor-induced cough, which is better managed with antitussives or drug discontinuation. Suppression of ethanol withdrawal is also not an established role, as benzodiazepines are the standard. Thus, pulmonary congestion stands out as a recognized therapeutic use.
Question 2
A patient tells his nurse that he has delayed having TURP because he is afraid it will affect his sexual function. Which response by the nurse is most appropriate?
A. “Don’t worry about sterility; sperm production is not affected by this surgery.”
B. “Would you like some information about implants used for impotence?”
C. “This type of surgery rarely affects the ability to have an erection or ejaculation.”
D. “There are many methods of sexual expression that are alternatives to sexual intercourse.”
Show answer and rationale
Correct answer: C — “This type of surgery rarely affects the ability to have an erection or ejaculation.”
The correct answer is C: “This type of surgery rarely affects the ability to have an erection or ejaculation.” This response is appropriate because it provides accurate information that addresses the patient's concern about sexual function without making any false claims. TURP (Transurethral Resection of the Prostate) typically does not impact a patient's ability to have an erection or ejaculate. This reassurance can help alleviate the patient's fears and provide him with accurate information to make an informed decision.
Explanation for why the other choices are incorrect:
A: “Don’t worry about sterility; sperm production is not affected by this surgery.” - This is incorrect as the concern is more about sexual function than sterility.
B: “Would you like some information about implants used for impotence?” - This is incorrect as it jumps to a solution without addressing the patient's specific concern about TURP affecting sexual function.
D: “There are many methods of sexual expression that are alternatives to sexual intercourse
Question 3
Hypothalamic and pituitary hormones (and their synthetic analogs) have pharmacologic applications in three areas EXCEPT the following:
A. As replacement therapy for hormone deficiency states
B. As drug therapy for a variety of disorders using pharmacologic doses to elicit a hormonal effect that is not present at physiologic a blood levels
C. As a diagnostic tool for performing stimulation tests to diagnose hypo- or hyperfunctional endocrine states
D. As food supplements
Show answer and rationale
Correct answer: D — As food supplements
The correct answer is D: As food supplements. Hypothalamic and pituitary hormones are not used as food supplements because they are potent molecules with specific regulatory functions in the body.
Step 1: Replacement therapy (Choice A) involves providing hormones to individuals with hormone deficiency states to restore normal physiologic levels. This is a common pharmacologic application of these hormones.
Step 2: Drug therapy (Choice B) involves using synthetic analogs of these hormones at pharmacologic doses to treat various disorders by eliciting specific hormonal effects that may not occur at physiologic levels.
Step 3: Diagnostic tool (Choice C) involves using these hormones in stimulation tests to assess the functioning of the endocrine system by observing the response to hormonal stimulation.
In summary, choices A, B, and C all represent valid pharmacologic applications of hypothalamic and pituitary hormones, while choice D (food supplements) is the exception as these hormones are not meant to be consumed as dietary
Question 4
A patient will be discharged on quinidine sulfate (Quinidex) extended-release tablets for the treatment of ventricular ectopy. The nurse will include which information in the teaching plan?
A. The medication should be stopped once the cardiac symptoms subside.
B. Signs of cinchonism, such as tinnitus, loss of hearing, or slight blurring of vision, may occur.
C. It is important to use sunscreen products when outside because of increased photosensitivity.
D. If any tablet or capsule is visible in the stool, contact the prescriber immediately.
Show answer and rationale
Correct answer: B — Signs of cinchonism, such as tinnitus, loss of hearing, or slight blurring of vision, may occur.
The correct answer is B: Signs of cinchonism, such as tinnitus, loss of hearing, or slight blurring of vision, may occur. Cinchonism is a potential side effect of quinidine sulfate, characterized by symptoms like tinnitus, loss of hearing, and blurred vision. It is essential for the nurse to educate the patient about these potential adverse effects to ensure early recognition and prompt reporting to the healthcare provider. This information is crucial for monitoring the patient's response to the medication and preventing further complications.
Incorrect choices:
A: The medication should not be stopped abruptly, and it is important to complete the prescribed course even if symptoms subside to prevent recurrence.
C: While photosensitivity can be a side effect of some medications, it is not specifically associated with quinidine sulfate. It is not a priority teaching point for this medication.
D: Seeing the tablet in the stool does not necessarily indicate treatment failure or danger. It is more likely due to the extended
Question 5
A patient will be discharged on quinidine sulfate (Quinidex) extended-release tablets for the treatment of ventricular ectopy. The nurse will include which information in the teaching plan?
A. The medication should be stopped once the cardiac symptoms subside.
B. Signs of cinchonism, such as tinnitus, loss of hearing, or slight blurring of vision, may occur.
C. It is important to use sunscreen products when outside because of increased photosensitivity.
D. If any tablet or capsule is visible in the stool, contact the prescriber immediately.
Show answer and rationale
Correct answer: B — Signs of cinchonism, such as tinnitus, loss of hearing, or slight blurring of vision, may occur.
The correct answer is B: Signs of cinchonism, such as tinnitus, loss of hearing, or slight blurring of vision, may occur. Cinchonism is a potential side effect of quinidine sulfate, characterized by symptoms like tinnitus, loss of hearing, and blurred vision. It is essential for the nurse to educate the patient about these potential adverse effects to ensure early recognition and prompt reporting to the healthcare provider. This information is crucial for monitoring the patient's response to the medication and preventing further complications.
Incorrect choices:
A: The medication should not be stopped abruptly, and it is important to complete the prescribed course even if symptoms subside to prevent recurrence.
C: While photosensitivity can be a side effect of some medications, it is not specifically associated with quinidine sulfate. It is not a priority teaching point for this medication.
D: Seeing the tablet in the stool does not necessarily indicate treatment failure or danger. It is more likely due to the extended
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Question 6
Which of the following statements about the major distribution barriers (blood-brain or fetal-placental) is true?
A. Water soluble and ionized drugs cross these barriers rapidly
B. The blood-brain barrier slows the entry of many drugs into and from brain cells
C. The fetal-placental barrier protects the fetus from drugs taken by the mother
D. Lipid soluble drugs do not pass these barriers and are safe for pregnant women
Correct answer:
The correct answer is B because the blood-brain barrier is designed to restrict the passage of many drugs into and out of brain cells, regulating the entry of substances to protect the brain from harmful agents.
Explanation:
1. The blood-brain barrier is a specialized structure that tightly regulates the passage of substances from the bloodstream into the brain.
2. Many drugs, especially water-soluble and ionized ones (choice A), face difficulty crossing this barrier due to their properties.
3. The fetal-placental barrier (choice C) primarily protects the fetus from harmful substances but does not slow drug entry into brain cells.
4. Lipid-soluble drugs (choice D) can actually pass through these barriers easily due to their chemical properties, posing risks for pregnant women.
In summary, choice B is correct as it accurately describes the role of the blood-brain barrier in controlling drug entry into brain cells, while the other choices present inaccurate statements regarding these distribution barriers.
A patient verbalizes a low pain level of 2 out of 10 but exhibits extreme facial grimacing while moving around in bed. What is the nurse’s initial action in response to these observations?
A. Proceed to the next patient’s room to make rounds.
B. Determine the patient does not want any pain medicine.
C. Ask the patient about the facial grimacing with movement.
D. Administer the pain medication ordered for moderate to severe pain.
Correct answer:
The correct answer is C: Ask the patient about the facial grimacing with movement. This is the initial action because the discrepancy between the patient's verbal pain level and non-verbal cues needs clarification. By directly asking the patient about the facial grimacing, the nurse can gather more information to assess the actual pain level accurately. This step ensures a comprehensive understanding of the patient's pain experience and guides further interventions.
Incorrect choices:
A: Proceed to the next patient’s room to make rounds - This choice neglects the need to address the discrepancy in the patient's pain assessment.
B: Determine the patient does not want any pain medicine - Assuming the patient's preference without further assessment can lead to inadequate pain management.
D: Administer the pain medication ordered for moderate to severe pain - Without clarifying the reason behind the facial grimacing, administering pain medication may not be appropriate and could result in unnecessary medication use.
Absorption, distribution, metabolism and excretion is the study of herdrugs':
A. pharmacodynamics
B. pharmacokinetics
C. therapeutic action
D. pharmaceutical preparation
Correct answer:
Pharmacokinetics is the study of how drugs are absorbed, distributed, metabolized, and excreted by the body. These processes determine the concentration of a drug at its site of action and contribute to understanding the drug's effectiveness and potential side effects. Therefore, absorption, distribution, metabolism, and excretion are key components of pharmacokinetics. Pharmacodynamics (Choice A) refers to the study of the physiological effects of drugs and their mechanisms of action, which is different from the processes involved in drug movement through the body. Therapeutic action (Choice C) refers to the desired effects of a drug in treating a specific condition, rather than the processes involved in drug processing in the body. Pharmaceutical preparation (Choice D) is related to the formulation and development of drugs before their administration, not to the processes within the body. Toxic effect (Choice E) refers to the harmful effects of drugs, which can result from various factors including pharmacokin
The following antibacterial drug combinations are of accepted benefit in the treatment of the stated infection:
A. Amoxicillin and cefadroxil for lower urinary tract infection in severely ill patients
B. Phenoxymethylpenicillin and tetracycline for acute osteomyelitis in a child under 5 years
C. Isoniazid, rifampicin, pyrazinamide and ethambutol in the initial treatment for pulmonary tuberculosis (TB)
D. Erythromycin and tetracycline for septicaemia
Correct answer:
Isoniazid, rifampicin, pyrazinamide, and ethambutol (C) is the correct answer as this combination is the standard initial regimen for pulmonary tuberculosis (TB), targeting Mycobacterium tuberculosis. This four-drug therapy, used for the first two months, addresses multiple bacterial targets to prevent resistance and ensure eradication, followed by a continuation phase with isoniazid and rifampicin. Amoxicillin and cefadroxil (A) aren't typically combined for severe urinary tract infections, where broader-spectrum agents like piperacillin-tazobactam are preferred. Phenoxymethylpenicillin and tetracycline (B) are unsuitable for osteomyelitis in children under 5 due to tetracycline's risk of tooth discoloration and lack of synergy. Erythromycin and tetracycline (D) lack evidence as a standard combination for septicaemia, which requires broader coverage. The TB regimen's multi-drug approach is critical given the organism's slow growth and propensity for resistance, making it a cornerstone of global TB management.
The following antibacterial drug combinations are of accepted benefit in the treatment of the stated infection:
A. Amoxicillin and cefadroxil for lower urinary tract infection in severely ill patients
B. Phenoxymethylpenicillin and tetracycline for acute osteomyelitis in a child under 5 years
C. Isoniazid, rifampicin, pyrazinamide and ethambutol in the initial treatment for pulmonary tuberculosis (TB)
D. Erythromycin and tetracycline for septicaemia
Correct answer:
Isoniazid, rifampicin, pyrazinamide, and ethambutol (C) is the correct answer as this combination is the standard initial regimen for pulmonary tuberculosis (TB), targeting Mycobacterium tuberculosis. This four-drug therapy, used for the first two months, addresses multiple bacterial targets to prevent resistance and ensure eradication, followed by a continuation phase with isoniazid and rifampicin. Amoxicillin and cefadroxil (A) aren't typically combined for severe urinary tract infections, where broader-spectrum agents like piperacillin-tazobactam are preferred. Phenoxymethylpenicillin and tetracycline (B) are unsuitable for osteomyelitis in children under 5 due to tetracycline's risk of tooth discoloration and lack of synergy. Erythromycin and tetracycline (D) lack evidence as a standard combination for septicaemia, which requires broader coverage. The TB regimen's multi-drug approach is critical given the organism's slow growth and propensity for resistance, making it a cornerstone of global TB management.
All of the following statements concerning the general principles of therapy with lipid-lowering drugs are true EXCEPT:
A. Therapy with a lipid-lowering drug should be always accompanied by an appropriate diet
B. A lipid-lowering diet should be discontinued if it fails to decrease the levels of plasma LDL cholesterol by at least 10%
C. Lipid-lowering drugs should only be administered after at least 3 months of prior dietary therapy
D. Some combinations of lipid-lowering drugs are synergistic
Correct answer:
Answer B is correct because discontinuing a lipid-lowering diet solely based on the immediate reduction in plasma LDL cholesterol levels by 10% is not appropriate. The efficacy of a diet in managing lipid levels should be evaluated over a longer period, considering other factors like overall cardiovascular health and risk factors. Choosing to discontinue the diet based solely on the short-term reduction in LDL cholesterol levels can lead to overlooking other important aspects of cardiovascular health.
Choices A, C, and D are incorrect:
A: This statement is true because combining lipid-lowering drugs with an appropriate diet can enhance the overall effectiveness of therapy in managing lipid levels.
C: This statement is also true as dietary interventions are usually recommended as the first-line approach before resorting to pharmacological therapy.
D: This statement is true as certain combinations of lipid-lowering drugs can indeed work synergistically to achieve better outcomes in managing lipid levels.
Which of the following statements about the major distribution barriers (blood-brain or fetal-placental) is true?
A. Water soluble and ionized drugs cross these barriers rapidly
B. The blood-brain barrier slows the entry of many drugs into and from brain cells
C. The fetal-placental barrier protects the fetus from drugs taken by the mother
D. Lipid soluble drugs do not pass these barriers and are safe for pregnant women
Correct answer:
The correct answer is B because the blood-brain barrier is designed to restrict the passage of many drugs into and out of brain cells, regulating the entry of substances to protect the brain from harmful agents.
Explanation:
1. The blood-brain barrier is a specialized structure that tightly regulates the passage of substances from the bloodstream into the brain.
2. Many drugs, especially water-soluble and ionized ones (choice A), face difficulty crossing this barrier due to their properties.
3. The fetal-placental barrier (choice C) primarily protects the fetus from harmful substances but does not slow drug entry into brain cells.
4. Lipid-soluble drugs (choice D) can actually pass through these barriers easily due to their chemical properties, posing risks for pregnant women.
In summary, choice B is correct as it accurately describes the role of the blood-brain barrier in controlling drug entry into brain cells, while the other choices present inaccurate statements regarding these distribution barriers.
Following surgery, a client is placed on cefotaxime (Claforan). The assessment for possible adverse effects should include observing for
A. diarrhea.
B. headache.
C. constipation.
D. tachycardia.
Correct answer:
Cefotaxime, a third-generation cephalosporin, treats postoperative infections but disrupts gut flora, commonly causing diarrhea due to overgrowth of pathogens like Clostridioides difficile. This adverse effect can range from mild to life-threatening pseudomembranous colitis, making it a priority observation. Headache might occur but is less frequent and specific to cefotaxime. Constipation contrasts with its GI effects, as diarrhea is more typical, while tachycardia could signal anaphylaxis or secondary infection but isn't a primary concern. Monitoring for diarrhea allows early detection of complications, enabling prompt intervention like discontinuing the drug or starting probiotics. This focus aligns with cephalosporins' pharmacological profile, where GI disturbance is a well-documented risk, especially post-surgery when patients are vulnerable. Thus, observing for diarrhea is the nurse's key assessment, ensuring patient safety and effective management of adverse effects, making A the correct choice.
Lorazepam can be safely used as a preanesthetic medication in a patient undergoing liver transplantation without fear of excessive CNS depression because the drug is
A. excreted in unchanged form
B. actively secreted into the GI tract
C. conjugated extrahepatically
D. a selective anxiolytic devoid of CNS depressant actions
Correct answer:
Lorazepam is a benzodiazepine commonly used as a preanesthetic medication due to its anxiolytic and sedative properties. In patients undergoing liver transplantation, where hepatic function is compromised, drugs that rely on liver metabolism could accumulate and cause excessive central nervous system depression. Lorazepam's key advantage lies in its pharmacokinetic profile: it undergoes glucuronidation, a conjugation process that occurs outside the liver, primarily in the kidneys. This extrahepatic metabolism ensures that its clearance is less affected by liver dysfunction, reducing the risk of prolonged or excessive sedation. Unlike other benzodiazepines that depend heavily on hepatic cytochrome P450 enzymes, lorazepam's metabolism is more predictable in such patients, making it a safer choice. Excretion in unchanged form or secretion into the GI tract does not apply, and while it is anxiolytic, it does have CNS depressant effects, ruling out other options. Naloxone reverses opioids, not benzodiazepines.
All of the following statements concerning the general principles of therapy with lipid-lowering drugs are true EXCEPT:
A. Therapy with a lipid-lowering drug should be always accompanied by an appropriate diet
B. A lipid-lowering diet should be discontinued if it fails to decrease the levels of plasma LDL cholesterol by at least 10%
C. Lipid-lowering drugs should only be administered after at least 3 months of prior dietary therapy
D. Some combinations of lipid-lowering drugs are synergistic
Correct answer:
Answer B is correct because discontinuing a lipid-lowering diet solely based on the immediate reduction in plasma LDL cholesterol levels by 10% is not appropriate. The efficacy of a diet in managing lipid levels should be evaluated over a longer period, considering other factors like overall cardiovascular health and risk factors. Choosing to discontinue the diet based solely on the short-term reduction in LDL cholesterol levels can lead to overlooking other important aspects of cardiovascular health.
Choices A, C, and D are incorrect:
A: This statement is true because combining lipid-lowering drugs with an appropriate diet can enhance the overall effectiveness of therapy in managing lipid levels.
C: This statement is also true as dietary interventions are usually recommended as the first-line approach before resorting to pharmacological therapy.
D: This statement is true as certain combinations of lipid-lowering drugs can indeed work synergistically to achieve better outcomes in managing lipid levels.
RN exams pharmacology practice questions, set 3 for nursing students in the United States. Fifteen items. Five include answers and rationales in American English.
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