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WorksheetsPharmacology - NRS234
Total questions: 32
Worksheet time: 17mins
Which drug best meets the criteria for a selective drug?
A drug that blocks M1 and M2 receptors in the bladder
A drug that blocks beta 1 and beta 2 receptors in the heart and lungs
A drug that binds to alpha 1 and 2 receptors on vascular smooth muscle and beta 1 receptors in the heart
A drug that blocks histamine 2 (H2) receptors on gastric parietal cells and has some effect on H2 receptors in the heart and vascular smooth muscles
Which types of drugs work through physical or chemical reactions rather than through receptor binding? (select all that apply)
Antacids
Hormones
Saline laxatives
Chelating agents
Regulatory molecules
Which time frame is appropriate for obtaining a peak level from a patient receiving intravenous vancomycin?
2 to 3 hours
2 to 4 hours
30 to 60 minutes
Before the next dose
A patient is prescribed an increased dose of a drug to improve control of their blood pressure. A week later, there is no change in the patient’s blood pressure (BP). Which phase of the dose-response curve might this reflect?
Phase 1
Phase 2
Phase 3
Phase 4
When providing care for a person who has stopped taking a drug with a half-life of 4 hours, how long will it take for 94% of the drug to leave the body?
8 hours
12 hours
16 hours
20 hours
Which of the four receptor families regulates protein synthesis?
Transcription factors
Ligand-gated ion channels
G protein-coupled receptors
Cell membrane-embedded enzymes
Which drug(s) classes interact adversely with cheeses? (select all that apply)
Tetracyclines
Fluoroquinolones
Theophylline
Calcium channel blockers
Monoamine oxidase (MAO) inhibitors
Explains why oral drugs are formulated to be absorbed from small intestine
(a)
Drug that easily crosses membranes that separate it from the blood
(a)
Process where drug accumulates on side of membrane favoring its ionization
(a)
Solutions have a faster onset than capsules due to this factor
(a)
Which route of administration provides rapid onset of delivery to enhance safety and efficacy?
Oral
Sublingual
Intravenous
Intramuscular
The liver metabolizes drugs into which component for renal excretion?
Prodrugs
Lipid-soluble drug
Active metabolites
Water-soluble substance
14. Only ___ of the 12 closely related cytochrome P450 enzyme families metabolize drugs.
3
6
9
12
Moves drugs from blood to urine
Glomerular Filtration
Passive Tubular Reabsorption
Active Tubular Secretion
Lipid-soluble drugs move back into the blood
Glomerular Filtration
Passive Tubular Reabsorption
Active Tubular Secretion
“Pumps” for organic acids and bases move drugs from blood to urine
Glomerular Filtration
Passive Tubular Reabsorption
Active Tubular Secretion
Which organ accounts for most drug excretion, thereby limiting the duration of action of many drugs?
Skin
Lungs
Kidneys
Gallbladder
Drugs are excreted by which routes? (select all that apply)
Feces
Lungs
Placenta
Breast milk
Lymph system
Which route of drug administration is most likely to be reversible?
Oral
Buccal
Intravenous
Subcutaneous
Which route of drug administration delivers drugs directly to the tissue where they exert their actions?
Sublingual
Inhalational
Intramuscular
Transdermal patch
Which conditions decrease blood flow to tissues, thereby reducing the effectiveness of drug therapy? (select all that apply)
Abscess
Solid tumor
Amputation
Hemangioma
Adipose tissue
The nurse knows that warfarin is 99% protein bound, whereas bupropion is 84% protein bound. If both drugs are administered concurrently, which events could occur? (select all that apply)
Warfarin could displace bupropion from its binding site.
Bupropion could displace warfarin from its binding site.
Bupropion could accumulate to toxic levels.
Warfarin could accumulate to toxic levels.
Warfarin and bupropion could bind to the same protein.
To safely administer drugs, nurses must understand that only certain drugs can cross the blood-brain barrier (BBB), including those that are highly lipid soluble and of low molecular weight. Which drug can cross the BBB?
Diazepam
Atenolol
Penicillin
Nadolol
Which routes of administration can be used to avoid the first-pass effect? (select all that apply)
Oral
Topical
Intranasal
Intravenous
Inhalational
Which factors alter drug metabolism in older adults? (select all that apply)
Liver immaturity
Decreased liver mass
Decreased total body water
Decreased hepatic blood flow
Reduced active tubular secretion
Kidney stones and urinary obstruction alter which pharmacokinetic principle?
Absorption
Distribution
Metabolism
Excretion
Certain drugs must undergo which process before enterohepatic recirculation can occur?
Elimination
Conjugation
Hydrolysis
Glucuronidation
Drugs with which property are excreted in breast milk?
Polar
Ionized
Lipid soluble
Protein bound
Which route of drug administration bypasses the first-pass effect in the liver?
Intravenous
Subcutaneous
Rectal
Oral
Which pharmacokinetic process is most affected in patients with severe liver disease?
Metabolism
Excretion
Absorption
Distribution
Which property increases a drug's likelihood of being reabsorbed from the renal tubules back into the bloodstream?
Large molecular size
Lipid solubility
High polarity
Protein binding
