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Pharmacology
Pharm Final
185
Health Care
Undergraduate 3
04/24/2007

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Term
Which of the following classes of agents would be most appropriate to treat patients with asthma?
Definition
A beta2 adrenergic receptor agonist
Term
A common side effect of adrenergic blocking agents like alpha adrenergic receptor blockers is a sudden increase in blood pressure when the patient changes position. This is known as:
Definition
Postural hypotension
Term
Cholinergic muscarinic receptor agonists produce all of the following except:
Definition
Tachycardia
Term
A patient who presents in the emergency department after improperly using oranophosphate insecticides would exhibit which of the following effects?
Definition
Increased GI motility
Term
When assessing for cardiovascular effects of an adrenergic agonist, which physiologic effects would a nurse anticipate?
Definition
Positive inotropic and positive dromotropic effects
Term
Stimulation of the sympathetic nervous system results in
Definition
Increased heart rate
Term
Each of the following physiological responses would be the result of activation of the SNS in a fight or flight type of reaction except:
Definition
Increased urination
Term
Placebo effects are:
Definition
Dependent on the patient's attitude
Term
When a drug produces the largest effect that can be produced through that receptor system, the drug is achieving
Definition
Maximal efficacy
Term
The ED50 value for any drug is defined as the dose required to:
Definition
Produce a therapeutic response in half of the population
Term
If a patient discontinues medication, how much of the drug will be left in the patient at the end of two half-lives?
Definition
25%
Term
During surgery to remove a pheochromocytoma, the acute increase in blood pressure caused by manipulation of the tumor may be treated with:
Definition
Alpha adrenergic antagonist
Term
The best way to decrease the first-dose effect of the alpha adrenergic receptor blocking agent prazosin (minipress) is to give:
Definition
The initial dose at bedtime
Term
Stimulation of the PNS results in which of the following effects:
Definition
Decreased heart rate
Term
Epinephrine (adrenalin) is an adrenergic drug that produces which therapeutic effect:
Definition
Increased heart rate and contractility
Term
The three most important characteristics of a drug are:
Definition
Selectivity, safety, effectiveness
Term
The autonomic nervous system functions to:
Definition
Regulate and integrate internal functions of the body
Term
Which types of drugs cross the placenta most readily?
Definition
Lipid-soluble
Term
A person vacationing in the everglades encounters a 14ft alligator. Their glucose level would:
Definition
Increase
Term
Indirect acting cholinergic agents:
Definition
Inhibit acetylcholinesterase to increase acetylcholine
Term
Stimulation of the sympathetic nervous system does not cause:
Definition
Vasodilation
Term
Normal volunteers are used for clinical trials in:
Definition
Phase I
Term
A patient needs an endotracheal intubation. Which drug do you administer?
Definition
Succinylcholine (Anectine)
Term
Drug-drug interactions are important considerations in clinical practice that could result in:
Definition
The need to adjust drug dosage or timing of administration to ensure effective drug therapy
Term
Health histories should include specific questions about OTC drugs and alternative therapies b/c:
Definition
Patients do not consider them to be drugs and do not report their use.
Term
The sympathetic nervous system uses chatecholamines to produce effects at the post ganglionic receptors. All of the following would be considered a catecholamine except:
Definition
Acetylcholine
Term
Agents that are considered adrenergic drugs produce effects similar to:
Definition
The sympathetic nervous system
Term
Which is true regarding neuromuscular blockade of an agent like pancruim during surgery?
Definition
Patients require artificial mechanical ventilation due to paralyzed respiratory muscles
Term
After you give a new medication, a patient experiences nausea and vomiting. How do you document?
Definition
Adverse effect
Term
Which term is used to describe the type of tolerance associated with long term use of drugs like morphine and heroin?
Definition
Pharmacodynamic
Term
Beta adrenergics are used to treat all except:
Definition
COPD
Term
The objective of drug therapy is to:
Definition
Provide maximum benefit with minimal harm
Term
A drug listen in an official compendium is listed by its
Definition
Generic name
Term
Which formulation of medication has a rapid onset?
Definition
Liquid suspension
Term
What is meant by dose-relationship that is graded?
Definition
As the dose increases, the response becomes greater.
Term
Identify the correct statement regarding potency:
Definition
Potency is the amount of drug that must be given to elicit an effect
Term
The term bioavailability means:
Definition
The ability of a drug to remain to reach the systemic circulation from its side of administration.
Term
Pharmacokinetic tolerance results from:
Definition
Accelerated drug metabolism
Term
The albumin of neonates has a lower binding capacity. You would
Definition
Reduce the amount of drug given to reduce toxicity
Term
Most neuropharmacological agents act by altering
Definition
Synaptic transmission
Term
Mean arterial blood pressure within the vascular system is determined by all of the following except:
Definition
Blood glucose
Term
The treatment of hypertension would include all of the following except:
Definition
The use of digitalis or cardiotonic drugs
Term
A patient who is hypertensive becomes pregnant. You treat her with:
Definition
Alphamethyldopa (aldomet)
Term
A patient is admitted to the ED for a hypertensive crisis w/ a blood pressure of 201/50. Which would you give?
Definition
Nitroprusside (Nipride)
Term
For a patient on low molecular heparin how frequently should labs be monitored?
Definition
These agents do not require monitoring
Term
Essential hypertension is diagnosed as:
Definition
No known cause
Term
A common side effect of many drugs used to treat hypertension cause change in blood pressure from sitting to standing. This is:
Definition
Postural hypotension
Term
Which agent has antiplatelet properties?
Definition
Clopidogrel (plavix)
Term
A patient has been taking Lasix for 6 months and the patient has been taking digoxin. What do you want to know before administering digoxin?
Definition
Serum postassium levels.
Term
A patient with hemophilia has mild pain after a dental procedure. What do you give?
Definition
Acetaminophen
Term
The Starling Law focuses on:
Definition
The force of ventricular contraction.
Term
The mechanism by which losartan (Cozaar) lowers blood presure is by:
Definition
Blocking angiotensin at its receptors
Term
One of the major reasons patients discontinue catopril (Capoten), an ACE inhibitor, is
Definition
A dry, unproductive cough
Term
Which drug would counteract an accelerated pulse rate?
Definition
Propranolol (a beta-blocker)
Term
Which drug calcium channel blocker can be used for dysrhythmias and angina?
Definition
Varapamil
Term
Which of the following is a Class I antiarrhythmic agent?
Definition
Quinidine
Term
Digoxin-induced dysrhythmias can be treated with:
Definition
Lidocaine
Term
Absorption of bile acid resins into the plasma:
Definition
Do not occur, the drug is not absorbed
Term
An increase in lipoprotein is indicative of high risk for developing atherosclerosis. Which one increases the risk?
Definition
LDLs
Term
Propafenone (Rhythmol) is classified in the Vaughn Williams as a Class IC antidysrhythmic drugs which means it works by:
Definition
Blocking NA+ (sodium) channels and altering phase 0
Term
Which is responsible for the positive inotropic effect of digoxin?
Definition
The inhibition of the NA+ (sodium) pump
Term
Coronary artery disease/angina pectoris results from
Definition
An imbalance in the supply and demand for oxygen
Term
The action of aspirin that makes it useful for long term therapy after MI involves:
Definition
A decrease in platelet aggregation
Term
A common side effect of nitroglycerin is
Definition
Headache
Term
During digoxin therapy, monitor K+ because
Definition
Decreased levels of potassium increases the chances of digoxin toxicity
Term
The best response for thrombolytic therapy will occur when it is:
Definition
Started within 4-6 hours after onset of symptoms
Term
Long term therapy after MI includes
Definition
Low dose apirin 80 mg
Term
HMGCOa reductase is an enzyme that works in the:
Definition
Process of formation of cholesterol within the cell
Term
Classic or stable angina
Definition
Goes away with rest and nitroglycerin
Term
Ace inhibitors produce dry unproductive cough, which of the following is responsible?
Definition
Bradykinin
Term
Which of the following blood vessels is responsible for transport under the highest pressure?
Definition
Arteries
Term
Activation of the baroreceptor reflex produces:
Definition
Increase in heart rate
Term
Which of the following classes of diuretics act to inhibit NA+ (sodium) and water absorption in the loop of Henle?
Definition
Loop diuretics
Term
Which of the following is a side effect of central alpha2 agonists?
Definition
Dry mouth
Term
The mechanism of beta blockers that make them effective in variant angina is:
Definition
Decrease in heart rate and decrease in O2 demand
Term
Which indicates drug therapy for heart failure is ineffective?
Definition
Patient weighs one pound more than yesterday
Term
Which of the following will you notice first in digoxin toxicity?
Definition
Slow pulse rate
Term
Drugs that block potassium would affect which phase of the fast potential in cardiac cells?
Definition
Phase III
Term
If an EKG has a widened QRS complex increase by 60%, which would you do?
Definition
Notify the physician immediately
Term
The effect of antidysrhythmic drugs that delay ventricular repolarization can be assessed by monitoring the:
Definition
QT interval
Term
Statins are drugs whose action occurs as a result of:
Definition
Inhibition of HMGCOa reductase
Term
The mechanism by which heparin suppresses coagulation involves:
Definition
Inactivating thrombin factor XA
Term
Warfarin differs from heparin because:
Definition
It decreases synthesis of clotting factors
Term
Nitrates are commonly used in angina pectoris because they:
Definition
Increase O2 demand???? Probably decrease.
Term
Cardiotonic drugs produce a positive inotropic effect. Which mechanism is responsible?
Definition
Elevation of intracellular CA+ levels in heart muscle.
Term
What cardiac activity is represented by the P wave?
Definition
Atrial depolarization
Term
Clopidogrel (Plavix), in comparison with aspirin, is less likely to cause which adverse effect?
Definition
GI bleed.
Term
Which statement defines the difference between levodopacarbidopa (Simeset) and plain devodopa?
Definition
The combination drugs is more effecient in increasing dopamine levels in the brain.
Term
The patient is having opioid withdrawals. Which do you expect to administer?
Definition
Methadone
Term
A patient has tremors, agitation, increase heart rate, blood pressure, and temp. While withdrawing from ETOH, which of the following would be most likely prescribed to manage?
Definition
Diazepam (valium)
Term
How are anticholinergic drugs effective in the early stages of Parkinson's?
Definition
Due to mechanism to antagonize stimulating effects of acetylcholine in the brain.
Term
A patient on monoamine oxidase inhibitor (MAOI) therapy should avoid foods that contain tyramine to prevent:
Definition
A hypertensive crisis
Term
Which of the following is a tricyclic antidepressant?
Definition
Imipramine (Tolfranil)
Term
Parkinson's has an imbalance of
Definition
Acetylcholine and dopamine
Term
Which of the following is a second generation antidepressant also used for nicotine addiction?
Definition
Bupropion (ZyBan)
Term
Which of the following drugs is used in the treatment of Alzheimer's disease that exerts its action by blocking NMDA receptors for glutamate?
Definition
Memantine
Term
Which of the following mechanisms of action is most closely associated with antipsychotic drugs; These agents act primarily as
Definition
Dopamine receptor antagonist
Term
Entacapone (Comtan), Tolcapone (Tasmar), and Selegilne (Elaepryl) are used to treat Parkinson's disease. These agents share which one of the following mech's of action:
Definition
They inhibit enzymes of COMT and MAO that break down dopamine
Term
The action of benzodiazepines involve the interaction of these agents with
Definition
GABA receptor sites in the brain to cause inhibition of neuronal excitation
Term
Drugs that treat epilepsy have mechanisms directed at
Definition
Stabilizing overexcited nerve membranes and/or increase neurotransmitter GABA
Term
Non-benzodiazepine-like drug used to treat insomnia when taken at bedtime with minimal or no residual effect is:
Definition
Zolpidem (Ambien)
Term
The cause of death from opiates is:
Definition
Respiratory arrest
Term
Which epileptic condition is life threatening where victims do not regain consciousness?
Definition
Status epilepticus
Term
What year was Dr. Taylor born?
Definition
1948
Term
Phenytoin has a narrow therapeutic effect which means
Definition
Safe and toxic levels are very close
Term
The drug of choice for treatment of absence (petit mal) seizures is
Definition
Ethosuximide (Zarontin)
Term
This agent is one of the drugs used to treat generalized anxiety but does not cause sedation, CNS depression, or have potential for abuse like benzodiazepines:
Definition
Buspirone (Buspar)
Term
Barbiturates cause liver enzyme induction which could lead to
Definition
Rapid metabolism and losss of effectiveness of other drugs metabolized by those enzymes
Term
The desire to obtain a drug despite the potential for physical, psychological, or social harm is:
Definition
Addiction
Term
The benzodiazepines are the most freequently used anxiolytic drugs because:
Definition
They are anxiolytic at much lower doses than those needed for sedation or hypnotics
Term
The antidote for an overdose of acetaminophen is:
Definition
Acetylcysteine
Term
Balanced anesthesia is the use of:
Definition
A combination of drugs to produce anesthesia
Term
Chronic treatment with drugs has been associated with changes in the manner in which patients respond. The brain alters its response to drugs by:
Definition
Adapting to the drugs
Term
Which of the following defines and anesthetic agent that produces global effects including LOC and deep muscle relaxation:
Definition
General anesthesia
Term
An elderly patient has slow shallow breaths at 9/minute. Which agent do you administer?
Definition
Naloxone-an opioid reversal agent
Term
Narcotics (opioids) are drugs that interact with opioid receptors throughout the body and may produce all of the following EXCEPT:
Definition
Hypertension
Term
Which of the following drugs is used to treat ADHD?
Definition
Methylphenidate (Ritalin)
Term
A common side effect of NSAID drugs is:
Definition
GI stress
Term
Fluoxetine (Prozac) achieves its antianxiety effects by:
Definition
Selectively inhibiting serotonin reuptake.
Term
A patient is placed on a tricyclic antidepressant. As the nurse responsible for patient education, you would council this pt to receive full benefit from the drug in:
Definition
1-2 months
Term
Cocaine addicts prefer inhaling crack cocaine because of:
Definition
Nearly instantaneous elevations result in intense responses
Term
For a drug to exert an effect on the brain, it is necessary for the drug to get into the brain through:
Definition
The blood brain barrier
Term
Local anesthetics stop axonal conduction by blocking:
Definition
Sodium channels
Term
This atypical antipsychotic agent blocks both serotonin and dopamine receptors, has more potential to cause diabetes, but less potential to produce extrapyramidal side effects (EPS) than conventional antipsychotics:
Definition
Olanzapine (Zyprexa)
Term
An overdose of a benzodiazepine can be treated with:
Definition
Flumazenil (Romazicon)
Term
The purpose of low-dose apirin therapy following an MI is to:
Definition
Suppress platelet aggregation
Term
The most effective method for the treatment of addicts is:
Definition
A combination of techniques to modify drug-using behaviors
Term
Stimulation of mu opioid receptors can produce which of the following effects:
Definition
Constipation, Miosis, Euphoria
Term
Acetaminophen (Tylenol) is very similar to aspirin in most aspects. However, the compound lacks which of the following properties of apirin?
Definition
Anti-inflammatory properties
Term
A 6 year old son of your neighbor has a fever of 103 during a bout of chicken pox. You should suggest which medication:
Definition
Ibuprofen (Motrin)
Term
Which of the following agents is a synthetic derivative of the major active substance in marijuana?
Definition
Dronabinol (Marinol)
Term
Flu-like symptoms is an adverse effect most commonly associated with which of the following agents to treat MS?
Definition
Both Interferon beta-lb (Betaseron) and Glatiramer acetate (Copaxone)
Term
The use of succinylcholine with an inhalational general anesthetic predisposes the pt to the development of malignant hyperthermia. What do you treat M.H. with?
Definition
Dantrolene (Dantrium)
Term
Which of the following agents used to treat acute migraine attacks works by acting as an agonist at serotonin 5HT1B/D receptors as well as suppressing CGRP release?
Definition
Sumceptriptan (Imitrex)
Term
Replacing dopamine in the brain would seem to be the best treatment for Parkinson's disease. This is difficult because dopamine:
Definition
Cannot cross the BBB
Term
One major process by which resistance has developed to the penicillins is that bacteria have developed:
Definition
An enzyme that metabolizes penicillin
Term
Which of the following classes of cephalosporins would be the most active against gram-negative organisms?
Definition
Fourth generation
Term
Which of the following classes of antibiotics would be responsible for discoloration of permanent teeth in children/fetuses?
Definition
Tetracyclines
Term
The treatemnt of Lyme disease employs the use of a macrolide antibiotic such as:
Definition
Azithromycin (Zithromax)
Term
Amphotericin B and nystatin are antifungal agents whose mechanism of action involves binding to membrane sterols and destroying integrity of the cell membrane? Why specific for fungi?
Definition
The main sterol in fungi cell membrane is ergosterol
Term
Which of the following drugs is used to prevent the severe thrombocytopenia that is often associated with chemotherapy?
Definition
Oprelvekin (Neumega)
Term
A patient who has end-stage renal failure and has been admitted to the hospital for severe anemia may receive which of the following drugs to stimulate RBC production?
Definition
Erythropoietin (Epoetin alpha)
Term
Cell cycle specific and cell cycle nonspecific agents are frequently combined to treat cancer patients. The rationale for such a combo used is based upon all of the following except:
Definition
The two drugs antagonize the actions of each other in normal cells only
Term
9-fluorocytocine is an antifungal drug that specifically affects fungi w/o interfering with normal cells. The reason for this selectivity is the conversion of 5-fluorocytosine into which of the following antimetabolites?
Definition
5-fluorouracil
Term
Ciprofloxacin, a widely used antibiotic, is an example of which class of antibiotic?
Definition
Fluoroquinolone
Term
The penicillins:
Definition
Are bactericidal b/c they interfere with bacterial cell walls
Term
One commonly associated adverse effect related to sulfonamide use is:
Definition
Photosensitivity
Term
Virus infections have been proved difficult to treat b/c
Definition
Viruses inject themselves into human cells to survive and reproduce
Term
The rationale for using combo therapy in treatin HIV infection includes all of the following except:
Definition
The drugs are cheaper when used in combination
Term
Fungi that cause infections of skin/mucous membranes are called:
Definition
Mycoses
Term
During therapy with interferons, the most common side effects and adverse effects include all of the following except:
Definition
Constipation
Term
Spectrum of activity of an anti-bacterial indicates:
Definition
The antibacterial effectiveness against different invading organisms
Term
Superinfections involving candida are infections that are commonly associated with antibiotic use. A pt with this type of infection would exhibit:
Definition
Vaginal discharge or white patches in the mouth
Term
An example of an antibacterial agent used as a means of prophylaxis would be:
Definition
An antibiotic used before dental surgery
Term
Selective toxicity is:
Definition
The ability of a drug to attack only those systems found in foreign or abnormal cells
Term
A patient with shingles who is being treated with topical antiviral therapy using acyclovir should be warned about which of the following side effects?
Definition
Transient burning when applied
Term
Which of the following statements is true regarding actions of antiviral drugs?
Definition
Antiviral agents are only effective while the virus is replicating, and replication is often finished by the time symptoms appear
Term
A bacteriostatic substance is one that:
Definition
Prevents growth of any bacteria
Term
Antibiotics that are used together to increase their effectiveness and limit the associated adverse effects are said to be:
Definition
Synergistic
Term
Which of the following symptoms or lab results might be expected in a pt experiencing a serious toxicity to the aminoglycoside antibiotic, gentamycin?
Definition
Tinnitus and hearing loss
Term
Patients who are allergic to penicillin may also be hypersensitive to which of the following?
Definition
Cephalosporins
Term
Patients who will be taking a tetracycline antibiotic should be adequately informed about which of the following interactions?
Definition
Milk and cheese products result in decreased levels of tetracycline
Term
Stomatitis is a potential side effect of treatment with the antineoplastic agent, 5-fluorouracil. Which of the following instructions would you provide?
Definition
She should examine her mouth daily for bleeding, white spots, and ulcerations
Term
Aminoglycosides act on microorganisms by:
Definition
Inhibiting protein synthesis
Term
Combinations of antibiotics should be used:
Definition
When the patient has been diagnosed with TB
Term
The purpose of administering probenecid with cefotaxime (Claforan) is to:
Definition
Delay the renal excretion of cefotaxime
Term
A patient has had a mild reaction to penicillin G in the past. If a penicillin-type drugs is needed, which of the following might be used with this patient?
Definition
Oral cephalosporins
Term
Which of the following drugs is administered orally to treat persistent infections of the toenails?
Definition
Griseofulvin
Term
Dissociation of methamine into ammonia and formaldehyde poses significant risks for patients with:
Definition
Hepatic dysfunction
Term
Administration of gentamycin with general anesthetics increases the risk of:
Definition
Neuromuscular blockade
Term
Amikacin (Amikin) is unique among aminoglycosides in that is:
Definition
Is reserved for infections proven to be resistant to aminoglycosides
Term
Which of the following observations is important for patients receiving cyclosporine?
Definition
Monitor patient's BUN and serum creatinine
Term
Cytotoxic drugs are not the drugs of first choice for immunosuppression because they:
Definition
Are toxic to all proliferating cells
Term
The purpose of administration of Rho(D) immune globulin (RhoGAM) is to:
Definition
Prevent production of antibodies to eliminate Rho(D) antigens in the blood of an Rh-negative woman
Term
Vitamin K is the antidote for:
Definition
Oral anticoagulants (warfarin)
Term
A patient has recently received a bone marrow transplant and the physician orders sargamostim (leukin), an agent that is a granulocyte-macrophage colony-stimulating factor. Which is not stimulate?
Definition
Hemoglobin
Term
Vincristine is classified as a:
Definition
Mitotic inhibitor
Term
Which chemotherapy agent permits safe administration of high doses of methotrexate by allowing normal cells to produce thymidylate?
Definition
Leucovorin
Term
Cardiotoxicity that occurs with cytotoxic anticancer drugs are classified as:
Definition
Antitumor antibiotics
Term
Which of the following properties are characteristic of neoplastic cells?
Definition
Immortality
Term
A cancer drug effective in eliminating growing cancer cells will exert the least effect if the cell is in the:
Definition
G0 phase
Term
Cytotoxic drugs injure the digestive tract primarily because:
Definition
They destroy the rapidly growing epithelial lining of the GI tract
Term
Which of the following agents would be most effective in treating an established infection?
Definition
Systemic antiinfective such as penicillin
Term
Dr. Taylor's youngest daughter was born on which day?
Definition
Jan 23rd
Term
Syphilis is highly responsive to:
Definition
Penicillin G
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