Question

The LPN/LVN is aware of the drug cycle that begins with the administration of a drug. Which factor(s) would influence the amount of time needed to complete the drug cycle of a drug? Select all that apply.

Answer 1

Correct Answers:

age
route of administration

Rationale :

🍇 B. Age

🍇 Age significantly influences how the body absorbs, distributes, metabolizes, and excretes drugs—key stages of the drug cycle.

🍇 In older adults, slowed metabolism and renal function can prolong drug effects, while in infants, immature organ systems may delay or intensify drug activity.

🍇 Age-related changes affect liver enzymes and kidney clearance, both crucial for completing the drug cycle.

🍊 D. Route of administration

🍊 The route through which a drug is given (oral, IV, IM, sublingual, etc.) determines how quickly and efficiently the drug enters the bloodstream.

🍊 IV medications act almost immediately, while oral medications may take longer due to digestive absorption and first-pass metabolism in the liver.

🍊 The route directly impacts the onset, intensity, and duration of drug action.

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Answer 2

Correct Answers:

“The FDA requires drugs to be scientifically researched and this can take up to 8 years.”

Rationale :

🍎 The U.S. Food and Drug Administration (FDA) requires that all drugs undergo a rigorous, multi-phase research process to ensure safety, efficacy, and quality before they are approved for public use.

🍎 This process includes preclinical trials, followed by phases I through III of clinical trials, and can take up to 8–12 years on average.

🍎 Providing this information helps the patient understand the reason behind delays in drug availability and supports informed, evidence-based discussion about their care.

🍎 It also conveys empathy and transparency, without suggesting potentially unsafe or non-regulated options.

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Answer 3

Correct Answers:

Barium sulfate

Rationale :

🍋 Barium sulfate is a contrast agent commonly used in diagnostic imaging tests, such as barium swallow, barium enema, or upper GI series, to enhance the visualization of the gastrointestinal tract.

🍋 It is administered orally or rectally, depending on the test, and helps outline the structure and movement of the GI organs on X-rays or fluoroscopy.

🍋 The nurse should monitor for constipation after the procedure and encourage fluid intake to help eliminate the contrast.

🍋 The other options (penicillin, estrogen, naloxone) are not used in diagnostic imaging.

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Answer 4

Correct Answers:

plants

Rationale :

🍊 Vitamin C (ascorbic acid) is primarily found in plant sources, especially in fruits and vegetables such as oranges, strawberries, bell peppers, broccoli, and kiwis.

🍊 It plays a crucial role in collagen synthesis, immune function, and iron absorption, and helps protect cells as an antioxidant.

🍊 While small traces may be found in animal tissues, plant sources are the main and most reliable dietary supply of vitamin C.

🍊 It is not derived from minerals or solvents, and animal sources are not significant contributors.

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Answer 5

Correct Answers:

replacement

Rationale :

🍎 In hypothyroid disease, the thyroid gland does not produce enough thyroid hormones, primarily T3 and T4, which are essential for metabolism and overall body regulation.

🍎 The nurse would anticipate replacement therapy, most commonly with levothyroxine (Synthroid), to restore normal hormone levels.

🍎 This approach aims to replace the hormone deficiency, rather than cure the underlying cause or offer only symptom relief.

🍎 It is a lifelong therapy for most patients and requires routine monitoring of TSH levels to adjust dosage.

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Answer 6

Correct Answers:

"This antibiotic is given as a prophylactic to help reduce the risk of infection after surgery."

Rationale :

🍋 Cefazolin is a first-generation cephalosporin antibiotic commonly administered preoperatively as prophylaxis to prevent surgical site infections (SSIs).

🍋 Administering it within 30 to 60 minutes before the first incision ensures optimal tissue concentration during surgery, helping reduce the risk of postoperative bacterial contamination.

🍋 It is not a palliative, nutrient replacement, or diagnostic agent—its purpose is clearly preventive (prophylactic).

🍋 Proper patient teaching should emphasize the role of antibiotic prophylaxis in infection control, especially in orthopedic surgeries, where implants pose a high infection risk.

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Answer 7

Correct Answers:

replacement

Rationale :

🍓 Hypothyroidism is a condition in which the thyroid gland does not produce enough thyroid hormone—primarily thyroxine (T4).

🍓 The standard treatment involves replacement therapy, most commonly with levothyroxine, a synthetic form of T4.

🍓 This medication replaces the deficient hormone to restore normal metabolic function and relieve symptoms such as fatigue, weight gain, and cold intolerance.

🍓 It is not curative or palliative, and it is used continuously to maintain hormone balance, not for prevention (prophylaxis).

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Answer 8

Correct Answers:

"This is a mild side effect and may not lead to additional side effects. If it were to occur, there may be ways to reduce the side effects.

Rationale :

🍎 This response provides accurate information and reassurance, while also acknowledging the patient’s concern and offering potential management strategies.

🍎 Mild gastrointestinal upset is a common side effect for many medications and does not necessarily predict more serious reactions.

🍎 The nurse’s role includes educating the patient about possible side effects and ways to minimize discomfort, such as taking the medication with food or adjusting the timing.

🍎 This response reflects therapeutic communication, promotes shared decision-making, and supports adherence when appropriate.

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Answer 9

Correct Answers:

Suck on the lozenge until it dissolves.

Rationale :

🍯 Lozenges are designed to dissolve slowly in the mouth, allowing the medication to be absorbed through the oral mucosa and to maintain local therapeutic effect in the throat.

🍯 Sucking on the lozenge maximizes contact time with the mucous membranes, which enhances local absorption and symptom relief.

🍯 Swallowing the lozenge or taking it with milk or water can wash the medication away prematurely, reducing its effectiveness.

🍯 The nurse should instruct the patient not to chew or swallow the lozenge but to allow it to melt slowly for optimal benefit.

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Answer 10

Correct Answers:

Ensure that the skin is clean and dry.

Rationale :

🍋 For topical medications, clean, dry skin enhances absorption by removing dirt, oils, and debris that could block the medication from penetrating the skin layers.

🍋 Moist or soiled skin can dilute or repel the medication, reducing its effectiveness.

🍋 While wearing gloves is important for nurse safety and hygiene, the first and most critical step to promote absorption is proper skin preparation.

🍋 Applying the ointment to clean and dry skin ensures the medication makes direct contact with the epidermis, maximizing its therapeutic effect.

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QLexNursing

1 :
The LPN/LVN is aware of the drug cycle that begins with the administration of a drug. Which factor(s) would influence the amount of time needed to complete the drug cycle of a drug? Select all that apply.

3 :
A patient is scheduled for diagnostic testing. Which medication should the nurse anticipate that the health-care provider would order?

4 :
Vitamin C can be found in which of the following sources?

5 :
The nurse is taking care of a patient who has hypothyroid disease. What category medications would the nurse anticipate be ordered?

6 :
While caring for a patient scheduled for knee replacement surgery, the nurse provides cefazolin(antibiotic) as ordered 30 minutes preoperatively. Which statement indicates that teaching has been effective?

7 :
While caring for a patient with a history of hypothyroidism, the nurse expects which of the following medications to be included in the patient's medication list?

8 :
A patient has experienced an upset stomach from a medication taken previously and is concerned about the possibility of additional side effects. What is the best nursing response?

9 :
The nurse is administering a lozenge to a patient for treatment of a sore throat. Which instruction by the nurse would lead to increased absorption of the medication?

10 :
The nurse is preparing to apply a topical ointment to a patient with a sore throat. Which instruction by the nurse would lead to first to help facilitate absorption of the medication?

QLexNursing

1 : The LPN/LVN is aware of the drug cycle that begins with the administration of a drug. Which factor(s) would influence the amount of time needed to complete the drug cycle of a drug? Select all that apply.

3 : A patient is scheduled for diagnostic testing. Which medication should the nurse anticipate that the health-care provider would order?

4 : Vitamin C can be found in which of the following sources?

5 : The nurse is taking care of a patient who has hypothyroid disease. What category medications would the nurse anticipate be ordered?

6 : While caring for a patient scheduled for knee replacement surgery, the nurse provides cefazolin(antibiotic) as ordered 30 minutes preoperatively. Which statement indicates that teaching has been effective?

7 : While caring for a patient with a history of hypothyroidism, the nurse expects which of the following medications to be included in the patient's medication list?

8 : A patient has experienced an upset stomach from a medication taken previously and is concerned about the possibility of additional side effects. What is the best nursing response?

9 : The nurse is administering a lozenge to a patient for treatment of a sore throat. Which instruction by the nurse would lead to increased absorption of the medication?

10 : The nurse is preparing to apply a topical ointment to a patient with a sore throat. Which instruction by the nurse would lead to first to help facilitate absorption of the medication?

1 :
The LPN/LVN is aware of the drug cycle that begins with the administration of a drug. Which factor(s) would influence the amount of time needed to complete the drug cycle of a drug? Select all that apply.

3 :
A patient is scheduled for diagnostic testing. Which medication should the nurse anticipate that the health-care provider would order?

4 :
Vitamin C can be found in which of the following sources?

5 :
The nurse is taking care of a patient who has hypothyroid disease. What category medications would the nurse anticipate be ordered?

6 :
While caring for a patient scheduled for knee replacement surgery, the nurse provides cefazolin(antibiotic) as ordered 30 minutes preoperatively. Which statement indicates that teaching has been effective?

7 :
While caring for a patient with a history of hypothyroidism, the nurse expects which of the following medications to be included in the patient's medication list?

8 :
A patient has experienced an upset stomach from a medication taken previously and is concerned about the possibility of additional side effects. What is the best nursing response?

9 :
The nurse is administering a lozenge to a patient for treatment of a sore throat. Which instruction by the nurse would lead to increased absorption of the medication?

10 :
The nurse is preparing to apply a topical ointment to a patient with a sore throat. Which instruction by the nurse would lead to first to help facilitate absorption of the medication?