Questions Flashcards
Pharmacokinetics involves the following mechanism/s
A. Metabolism B. Distribution C. Absorption D. Elimination E. All
E
Major route of drug administration?
A. Parenteral
B. Sublingual C. Enteral
D. A&C
E. All
D
Advantage of oral route.
A. Easilyselfadministered
B. Lessinfections
C. Canbereversed
D. A&C
E. All
E
What organ is encountered by oral drugs before it is distributed into the circulation?
A. Stomach
B. Duodenum
C. Liver
D. Kidneys
E. Lung
C
With oral route, where is the major site of entry into systemic circulation?
A. Mouth
B. Stomach C. Duodenum D. A&C
E. All
C
First pass metabolism of oral drugs needs
A. Enhanceofabsorption
B. Limitsefficacy
C. Inhibitsabsorption
D. A&C E. All
B
Drug that exhibits first pass metabolism should be given:
A. Parenterally
B. beforemeals
C. Aftermeals
D. Atbedtime
E. Insufficientquantity
A
Oral drugs medication taken with food what would happen
A. Delaygastricemptying B. Destroyedwithacids
C. Unavailableforabsorption D. A&C
E. Al
D
Cholinergic drugs produce effects similar to the effects when the sympathetic nervous system is stimulated
True
False
False
The advantage of Ipratropium from atropine is that its effects are isolated in the pulmonary system.
True
False
True
Scopolamine can be used in anesthetic procedure and can block short term memory
True
False
True
Norepinephrine produces bradycardia instead of tachycardia because norepinephrine decreases peripheral vascular resistance
True
False
False
The following beta blockr/s that exhibit ISA (Intrinsic Sympathomimetic Activity)
None
Propranolol
All
Pindolol
Timolol
Nadolol
Pindolol
Functional cholinergic receptors are found in the following organs:
Gastric glands
All except one item
All
Sweat Glands Cardiac Cells Smooth muscles in the eye
All
Which of the following organs has a relatively greater blood flow?
Intestines
Both
Stomach
Intestines
Which of the following organs, where majority of “First-Pass” metabolism will take place?
All
Liver
Oral Kidney
Duodenum
Liver
Insulin is best when taken by mouth and swallowed
True
False
False
This is a precursor in the illicit manufacture of shabu
Cocaine
Ephedrine
Amphetamine
Tyramine
Ephedrine
Beta agonists play a major role in the treatment of bronchoconstriction in patients with asthma
True
False
True
Pheochromocytoma secretes norepinephrine and causes high blood pressure, in what organ is that tumor located?
Adrenal Gland
Heart
Kidney
All
None
Liver
Adrenal Gland
The following is/are non- selective ALPHA (adrenergic) blockers
Phenoxybenzamine
Tamsulosin
Alfuzosin
None
All
Prazosin
Phenoxybenzamine
Which of the following is an irreversible alpha antagonist?
Prazosin
Phentolamine
None
Tamsolusin
Phenoxybenzamine
All
Phenoxybenzamine
What specialized structure increases the absorptive capacity of an organ?
Vesicles
All
Microvilli
Capillaries
Microvilli
Route of drug administration that has the highest bioavailability
Intranasal
Intrathecal
Intravascular
Inhalation
Intravascular
Sublingual route of drug administration facilitates direct absorption of drug into the bloodstream
True
False
True
In order for a drug to interact with nuclear receptors, the drug must be lipid soluble to be able to penetrate the nuclear membrane
True
False
True
All drugs must exert some chemical influence on receptors to produce pharmacologic response
True
False
True
Nitroglycerine can achieve a complete absorption if given orally
True
False
False
They are sensing agents that coordinates the function of all the cells in the body:
Enzymes
Receptors
Ligands
Proteins
Receptors
The stomach and the GIT limits the efficacy of many drugs when taken orally
True
False
True
Alpha & beta receptors belong the family of G protein-coupled receptors
True
False
True
This is used to restore the cardiac rhythm in patients with cardiac arrest:
Dobutamine
Dopamine
Amphetamine
Epinephrine
Epinephrine
Enteral route introduces an agent direct to a person circulation across the body’s barrier system
True
False
False
Which of the following receptors is a cardio-selective?
Alpha 1
None
Alpha 2
All
Beta 1
Beta 2
Beta 1
The following is/are action/s of ATROPINE in the eye
Able to focus near objects
All except one
Mydriasis
All
Pupillary constriction
Responsive to light
All except one
Which route of drug administration has an erratic and incomplete
absorption of drugs
Subcutaneous
Inhalation
Rectal
Intrathecal
Rectal
Allergic reactions are unpredictable & dose-dependent.
True
False
False
Route of drug administration that delivers a local effect of the drug
Rectal
Topical
Transdermal
Sublingual
Topical
Allergic reactions are unpredictable & dose-dependent.
True
False
False
Non-selective alpha blockers can stimulate beta receptors in the heart, causing tachycardia and arrhythmias.
True
False
True
In patients with diabetes mellitus, the dose of insulin must be decreased if epinephrine is given because of increased uptake of glucose by the peripheral tissue.
True
False
False
Food may delay gastric emptying and therefore can aid in the absorption of drugs
True
False
True
Dopamine comes from exogenous & endogenous sources
True
Fals
True
Which of the following is/are ganglionic blockers?
Atropine
All
None
Tropicamide
Nicotine
Scopolamine
Nicotine
Which of the following is/are 3rd generation beta blockers (non-selective), can produce peripheral vasodilation blocking alpha1 and beta receptors?
Pindolol
None
Labetalol
Nadolol
Propranolol
All
Labetalol
Atropine can be used to treat gastric ulcers because it reduces gastric activity.
True
False
False
Which of the following anticholinergic drugs does not enter the CNS?
Ipratropium
Scopolamine
All
Atropine
None
Ipratropium
The following is or are therapeutic uses neuromuscular blockers
All
None
Facilitates mechanical ventilation Treat enuresis
Antispasmodic
Antidote for insecticide poisoning
All
Atropine increases intraocular pressure therefore can be use in the treatment of narrow angle glaucoma
True
False
False
Beta blockers can penetrate the central nervous system
True
False
True
Antimuscarinic agent of choice for short duration eye procedure or surgery
Tropicamide
Atropine
None
Ipratropium
All
Scopolamine
Tropicamide
The effect of acetylcholine in decreasing the blood pressure is due to vasodilation which is turn due to nitric oxide
True
False
False
Muscarinic 2 receptors & beta receptors are found in the heart
True
False
True
Antagonists produce no effects by themselves because they have decreased affinity to receptors.
True
False
False
Antimuscarinic agent that results to broncho dilation and reduction of mucus secretion.
All
None
Scopolamine
Cyclopentolate
Tropicamide
Tiotropium
Atropine
Tiotropium
Which of the following is/are the adverse effects of antimuscarinic drugs?
None
Stasis of urine
Confusion
All
Agitation Blurring of vision Dry mouth
All
This tumor in the adrenal gland releases as much as 97% of norepinephrine:
Adenome
Large cell carcinoma
Pheochromocytoma
Small cell carcinoma
Pheochromocytoma
Which of the following routes of drug administration has the most complicated means of absorbing drug
Intravenous
Sublingual
Oral
Intramuscular
Oral
The following is/are selective alpha antagonists that are effective treatment for BPH (Benign Prostate Hypertrophy)
Terazosin
Prazosin
Doxazosin
None
Tamsulosin
All
All
This is used in the treatment of hypertension:
Epinephrine
Norepinephrine
Dopamine
Clonidine
Clonidine
The following is or are physical that influences drug absorption.
Contact time at the absoprtion surface
Total surface area
Blood flow
Capillary permeability
All except one
All
All
Anticholinergic of choice for motion sickness.
All
Scopolamine
Atracurium
Atropine
None
Tiotropium
Nicotine
Ipratropium
Scopolamine
Hepatic dysfunction can markedly retard the metabolism of drugs
True
False
True
A highly potent drug is usually highly effective.
True
False
False
In neuronal uptake of norepinephrine, the norepinephrine’s action is terminated by the drug’s reuptake into the noradrenergic nerve terminals.
True
False
True
A drug with high efficacy may be a full agonist
True
False
True
Epinephrine as a bronchodilator, inhibits the release of inflammatory mediators like heparin from the mast cells.
True
False
False
The following is or are advantage(s) of intravenous route.
Irreversible
Hemolysis
Pain
All except one of the above
All
None
None
Beta 2 receptors antagonists can be used in asthmatic patients and with COPD
True
False
False
Oral Penicillin is ideally given in
Empty stomach
With food
With other drugs
Sublingually
None
Empty stomach
Goal/s of sublingual route is/are
Diffuses into the capillary network
Avoids first-pass metabolism
Enters the systemic circulation directly
A & C
All
All
Indication/s parenteral
Poor GI absorption/
Unstable GI absorption/
Unconscious patients/
A & C
All
All
Disadvantages of parenteral
Irreversible
Pain
Infection
A &C
All
All
Route of drug administration in which introduces through the CSF
Intrathecal
Intraarterial
Intraventricular
A & C
All
A & C
Disadvantages of rectal route
Erratic absorption
Irritates the rectal mucosa
Incomplete absorption
A & C
All
All
Parasympatholytic use as adjuvants in anesthesia during surgery ( Cholinergic )
Anti-muscarinic agents
Ganglionic blockers
Neuromuscular blockers
A &C
All
Neuromuscular blockers
Which cholinergic blocker act/s on the nicotinic receptor
Ganglionic Blockers
Anti-muscarinic agents
Neuromuscular blockers
A &C
All
A &C
The following is/are effect of nicotine in cigarette
High BP
Tachycardic ( increase heart rate)
Increase secretion
A &C
All
All
Which among the parasympatholytic drugs do not possess therapeutic use
Anti-muscarinic
Nicotine
Neuromuscular blockers
A &C
All
Nicotine
Stimulation of sympathetic division of the autonomic nervous system will result to
Increase heart rate bp
Increase flow to skeletal muscles
Pupillary dilation
A &C
All
All
Chemical signaling between cells is done through, how
Chemical mediators
Hormones
Neurotransmitters
A &C
All
All
Cholinergic blockers that will now inhibit sympathetic neuron of the salivary and the sweat glands
Anti-muscarinic
Ganglionic Blockers
Neuromuscular blockers
All
None
Anti-muscarinic
Atropine produces the following effects
Decrease GI and GUT motility
Decrease acid production
Pupillary dilation
A & C
All
A & C
Cholinergic blockers that has the ability to enter the CNS
Atropine
Ipratropium
Scopolamine
A & C
All
A & C
Which of the following may be use to overcome atropine toxicity at a low dose
Physostigmine
Scopolamine
Tiotropium
Cyclopentolate
None
Physostigmine
The following are the action of atropine on the eyes
Mydriasis
Anti-motion sickness
Cyclopegia
A & C
All
A & C
The following are the action of atropine exert on the GIT
Reduce gastric motility
Reduce hydrochloric acid production
For treatment of ulcers
All
None
Reduce gastric motility
High dose of atropine in the heart will have the following effects
Rapid heart rate
Blurring of vision
Palpitations
A & C
All
A & C
Main reasons why atropine was replaced by cyclopentolate and tropicamide
Permits measurement of retractive errors
Prolong mydriasis
Interface the capacity of the eye
A & C
All
A & C
Preferred drug for pupillary dilation is cyclopedia is not required
Cyclopentolate
Phenylephrine
Tropicamide
A & C
All
A & C
Which of the following agents are used in the treatment of insecticide or mushroom poisoning
Scopolamine
Nicotine
Atropine
A & C
All
Atropine
The following statements are true with adrenergic antagonists.
Trigger the usual receptor-mediated intracellular effects.
Sympathomimetics
Act either reversibly or irreversibly attaching to the adrenoceptors.
A & C
None
Act either reversibly or irreversibly attaching to the adrenoceptors.
Which of the following organ-systems in the human body is primarily managed or treated with adrenergic antagonists/blockers?
Gastrointestinal
Genito-urinary
Cardiovascular
Reproductive
None
Cardiovascular
The following are the effects upon blockade of alpha 1 adrenoceptors.
Profoundly affects blood pressure-
Reduces sympathetic tone of blood vessels
Decreases peripheral vascular resistance
A&C
All
A&C
A catecholamine-secreting tumor of the adrenal medulla which is associated with sweating and hypertension and is treated with phenoxybenzamine.
Raynaud’s disease
Pheochromocytoma
Frostbite
A&C
All
Pheochromocytoma
Which of the following are selective competitive blockers of the alpha receptors?
Prazosin
Terazosin
Doxazosin
A& C
All
All
Which of the following selective alpha 1 blockers which are indicated by the treatment of benign prostatic hyperplasia?
Tamsulosin
Alfuzosin
Silodosin
A&C
All
All
Which of the following drugs can result in a “First -dose” effect ____
Phenoxybenamine
Propranolol
Phentolamine
A & C
NOne
A & C
Which of the following ways ‘first dose’ effect can be minimized?
Give the drug at bedtime
Double the dose
Adjust dose to one third or one fourth of the normal dose
A&C
ALL
A&C
Which of the following is alpha 2 selective blocker?
Yohimbine
Prazosin
Timolol
Propranolol
All
Yohimbine
Which of the cardioselective Beta blockers?
Atenolol
Propranolol
Metoprolol
A& C
All
A& C
Which of the following is the reason why Beta blockers do not induce postural hypotension?
Alpha adrenaceptors remain functional
Lowers blood pressure
Normal Sympathetic control of vasculature is maintained
A&C
All
Normal Sympathetic control of vasculature is maintained
Propranolol is contraindicated in which group of patients?
COPD
Hypertensives
Asthma
A&C
All
A&C
The following are therapeutic uses of Propranolol.
Angina pectoris
Myocardial infarction
Migraine
A&C
All
All
Which of the following Nonselective Beta blocker/s is/are used for the treatment of chronic glaucoma?
Nadolol
Pilocarpine
Timolol
A&C
AlI
Timolol
To provide effective antimicrobial therapy, the clinically obtained antibiotics concentration must be greater than
T/F
True
The total amount of drug present in the serum is important in order for it to pass through the blood-brain barrier
T/F
FALSE
True or false
Newer drugs should be used initially to treat serious infections when the identity of the causative organism is still unknown to avoid resistance.
False
True or false
Susceptibility testing is done to narrow the list of possible antimicrobials that could be used in empiric therapy
True
True or false
Susceptibility testing does not predict the patient’s response to the treatment.
False
Combination therapy enhances therapeutic efficacy by the use of synergistic interactions of antibiotics
True or false
True
True or false
Hydrophilic drugs tend to get concentrated in the cell membrane
False
True or false
Alcoholism can affect the patient’s immune competence, thus a higher-than- dose with shorter course of treatment is indicated. (
True
Antibiotic taken in by a nursing infant via the breast milk cannot cause adverse effect because the concentration of antibiotic in milk is usually low.
True or false
False
True or false
in patients with hepatic dysfunction, the dosage of antibiotic need not be because antibiotics are usually eliminated by the kidneys.
False