NUR 210 | NUR210 Exam 1 V2 – Updated and Latest Questions and
Correct Answers with Rationale – Galen College of Nursing
1. A patient is prescribed a medication that is known to have a high ‘first-pass effect.’ Which
route of administration would the nurse expect to be avoided to ensure maximum
bioavailability?
A. Intravenous (IV)
B. Oral (PO)
C. Sublingual
D. Transdermal
Answer: B
Rationale: The first-pass effect occurs when a drug is metabolized by the liver before
reaching systemic circulation. Oral medications are absorbed in the GI tract and carried to
the liver via the hepatic portal vein. This process significantly reduces the amount of active
drug available to the body. Routes such as IV, sublingual, and transdermal bypass the liver
initially, maintaining higher bioavailability. Understanding this concept is crucial for nurses
to anticipate the dosage differences between oral and parenteral routes.
2. A nurse is preparing to administer a drug with a half-life of 4 hours. If the dose is 200 mg at
0800, how much of the drug will remain in the patient’s system at 1600?
A. 50 mg
B. 100 mg
C. 25 mg
D. 0 mg
Answer: A
Rationale: Half-life is the time required for the concentration of a drug in the body to
decrease by 50%. From 0800 to 1600 is a total of 8 hours, which represents two half-lives.
After the first 4 hours (at 1200), 100 mg remains; after the second 4 hours (at 1600), 50 mg
remains. Nurses use half-life data to determine dosing intervals and steady-state timing.
Calculating these levels helps prevent toxicity and ensures therapeutic efficacy remains
consistent.
3. Which pharmacokinetic process is primarily affected in a patient with end-stage renal
disease?
A. Absorption
B. Distribution
,C. Metabolism
D. Excretion
Answer: D
Rationale: Excretion is the process by which drugs are removed from the body, primarily
through the kidneys. Patients with renal disease have a decreased ability to filter and
eliminate metabolic waste and drug metabolites. If excretion is impaired, the drug may
accumulate to toxic levels in the blood. Nurses must monitor laboratory values like serum
creatinine and BUN to assess renal function. Adjustments in dosage or frequency are often
required for patients with compromised kidney health.
4. A nurse is caring for an older adult patient with low serum albumin levels. How does this
condition affect the distribution of highly protein-bound drugs?
A. The drug will be inactive and excreted faster.
B. There will be an increase in the amount of free, active drug.
C. The drug will be completely absorbed by the liver.
D. The drug will have a shorter duration of action.
Answer: B
Rationale: Drugs that are highly protein-bound attach to albumin, and only the ‘free’
portion is pharmacologically active. With low albumin levels (hypoalbuminemia), there are
fewer binding sites, leaving more free drug in the bloodstream. This increase in free drug
significantly raises the risk of toxicity, even with standard doses. Nurses must be vigilant
when administering medications to malnourished or elderly patients with low protein
stores. Assessing for signs of adverse reactions is a priority in this specific patient
population.
5. The nurse is reviewing a medication order: ‘Give Furosemide 40 mg PO daily.’ Which
component is missing from this order to make it complete and legal?
A. The time or frequency
B. The dose
C. The route
D. The indication for use
Answer: A
Rationale: A complete medication order must include the patient name, drug name, dose,
route, frequency, and prescriber signature. In this scenario, ‘daily’ indicates frequency, but
if a specific time was omitted, the order might be considered incomplete depending on
hospital policy. However, usually, ‘indication’ is not required for standard orders, whereas
frequency and time are vital for consistency. If an order is vague, the nurse is legally
, obligated to clarify with the provider before administration. This prevents medication
errors and ensures patient safety remains the highest priority.
6. A patient is receiving a drug that acts as an ‘antagonist.’ The nurse understands that this
drug will have which effect at the receptor site?
A. Bind to the receptor and block a response.
B. Bind to the receptor and mimic the natural response.
C. Increase the sensitivity of the receptor.
D. Permanently destroy the receptor site.
Answer: A
Rationale: Antagonists are drugs that bind to receptors but do not activate them, thereby
preventing other substances from binding. By occupying the receptor site, the antagonist
inhibits or blocks the physiological response of the natural ligand. An example is a beta-
blocker, which prevents adrenaline from increasing the heart rate. This is different from an
agonist, which stimulates a response upon binding. Nurses must understand these
dynamics to explain medication actions and side effects to patients.
7. A nurse is preparing to give an intramuscular (IM) injection. Which factor significantly
influences the absorption rate of a drug administered via the IM route?
A. The patient’s diet
B. Blood flow to the muscle
C. The patient’s height
D. Digestive enzyme activity
Answer: B
Rationale: Absorption from an IM site depends on the solubility of the drug and the
regional blood flow to the muscle. Muscles with higher vascularity, such as the deltoid,
typically absorb drugs faster than less vascular sites like the gluteus. If blood flow is
impaired, such as in shock or cold temperatures, absorption will be delayed. Nurses should
select injection sites based on the volume of the drug and the patient’s circulatory status.
This ensures that the medication reaches the systemic circulation at the intended
therapeutic rate.
8. When administering medications to a pediatric patient, the nurse knows that which
physiological factor contributes to a higher risk of drug toxicity compared to adults?
A. Higher body fat percentage
B. Immature liver and kidney function
C. Increased gastric acidity
Correct Answers with Rationale – Galen College of Nursing
1. A patient is prescribed a medication that is known to have a high ‘first-pass effect.’ Which
route of administration would the nurse expect to be avoided to ensure maximum
bioavailability?
A. Intravenous (IV)
B. Oral (PO)
C. Sublingual
D. Transdermal
Answer: B
Rationale: The first-pass effect occurs when a drug is metabolized by the liver before
reaching systemic circulation. Oral medications are absorbed in the GI tract and carried to
the liver via the hepatic portal vein. This process significantly reduces the amount of active
drug available to the body. Routes such as IV, sublingual, and transdermal bypass the liver
initially, maintaining higher bioavailability. Understanding this concept is crucial for nurses
to anticipate the dosage differences between oral and parenteral routes.
2. A nurse is preparing to administer a drug with a half-life of 4 hours. If the dose is 200 mg at
0800, how much of the drug will remain in the patient’s system at 1600?
A. 50 mg
B. 100 mg
C. 25 mg
D. 0 mg
Answer: A
Rationale: Half-life is the time required for the concentration of a drug in the body to
decrease by 50%. From 0800 to 1600 is a total of 8 hours, which represents two half-lives.
After the first 4 hours (at 1200), 100 mg remains; after the second 4 hours (at 1600), 50 mg
remains. Nurses use half-life data to determine dosing intervals and steady-state timing.
Calculating these levels helps prevent toxicity and ensures therapeutic efficacy remains
consistent.
3. Which pharmacokinetic process is primarily affected in a patient with end-stage renal
disease?
A. Absorption
B. Distribution
,C. Metabolism
D. Excretion
Answer: D
Rationale: Excretion is the process by which drugs are removed from the body, primarily
through the kidneys. Patients with renal disease have a decreased ability to filter and
eliminate metabolic waste and drug metabolites. If excretion is impaired, the drug may
accumulate to toxic levels in the blood. Nurses must monitor laboratory values like serum
creatinine and BUN to assess renal function. Adjustments in dosage or frequency are often
required for patients with compromised kidney health.
4. A nurse is caring for an older adult patient with low serum albumin levels. How does this
condition affect the distribution of highly protein-bound drugs?
A. The drug will be inactive and excreted faster.
B. There will be an increase in the amount of free, active drug.
C. The drug will be completely absorbed by the liver.
D. The drug will have a shorter duration of action.
Answer: B
Rationale: Drugs that are highly protein-bound attach to albumin, and only the ‘free’
portion is pharmacologically active. With low albumin levels (hypoalbuminemia), there are
fewer binding sites, leaving more free drug in the bloodstream. This increase in free drug
significantly raises the risk of toxicity, even with standard doses. Nurses must be vigilant
when administering medications to malnourished or elderly patients with low protein
stores. Assessing for signs of adverse reactions is a priority in this specific patient
population.
5. The nurse is reviewing a medication order: ‘Give Furosemide 40 mg PO daily.’ Which
component is missing from this order to make it complete and legal?
A. The time or frequency
B. The dose
C. The route
D. The indication for use
Answer: A
Rationale: A complete medication order must include the patient name, drug name, dose,
route, frequency, and prescriber signature. In this scenario, ‘daily’ indicates frequency, but
if a specific time was omitted, the order might be considered incomplete depending on
hospital policy. However, usually, ‘indication’ is not required for standard orders, whereas
frequency and time are vital for consistency. If an order is vague, the nurse is legally
, obligated to clarify with the provider before administration. This prevents medication
errors and ensures patient safety remains the highest priority.
6. A patient is receiving a drug that acts as an ‘antagonist.’ The nurse understands that this
drug will have which effect at the receptor site?
A. Bind to the receptor and block a response.
B. Bind to the receptor and mimic the natural response.
C. Increase the sensitivity of the receptor.
D. Permanently destroy the receptor site.
Answer: A
Rationale: Antagonists are drugs that bind to receptors but do not activate them, thereby
preventing other substances from binding. By occupying the receptor site, the antagonist
inhibits or blocks the physiological response of the natural ligand. An example is a beta-
blocker, which prevents adrenaline from increasing the heart rate. This is different from an
agonist, which stimulates a response upon binding. Nurses must understand these
dynamics to explain medication actions and side effects to patients.
7. A nurse is preparing to give an intramuscular (IM) injection. Which factor significantly
influences the absorption rate of a drug administered via the IM route?
A. The patient’s diet
B. Blood flow to the muscle
C. The patient’s height
D. Digestive enzyme activity
Answer: B
Rationale: Absorption from an IM site depends on the solubility of the drug and the
regional blood flow to the muscle. Muscles with higher vascularity, such as the deltoid,
typically absorb drugs faster than less vascular sites like the gluteus. If blood flow is
impaired, such as in shock or cold temperatures, absorption will be delayed. Nurses should
select injection sites based on the volume of the drug and the patient’s circulatory status.
This ensures that the medication reaches the systemic circulation at the intended
therapeutic rate.
8. When administering medications to a pediatric patient, the nurse knows that which
physiological factor contributes to a higher risk of drug toxicity compared to adults?
A. Higher body fat percentage
B. Immature liver and kidney function
C. Increased gastric acidity
