past questions Flashcards
(75 cards)
according to the theory that agonists and antagonists occupy the same receptor site, an effective antagonist should inhibit?
A) High intrinsic activity and low affinity
B) no intrinsic activity and high affinity
C) low intrinsic activity and low affinity
D) High intrinsic activity and low affinity
B) no intrinsic activity and high affinity
a drug that interacts directly with the agonist and not at all, or indirectly with the receptor?
A) Chemical antagonist
B) Pharmaceutical antagonist
C) Partial agonist
D) Physiologic antagonist
A) Chemical antagonist
----- is the largest effect a drug can produce, regardless of dose? A) Quantal dose response curve B) Graded dose response curve C) maximum efficacy D) Therapeutic index
C) maximum efficacy
What is the appropriate percentage of a weak base (PKa =8.4) in the non-ionised form in the plasma having PH of 7.4
A) 90%
B) 50%
C) 100%
D) 10%
D) 10%
when supplying this drug, one copy of which must be kept by the registered feed compounder?
A) Prescription
B) special prescription
C) Prescription for medicated feed stuffs (PMF)
D) legislation on requisition
C) Prescription for medicated feed stuffs (PMF)
which of the following can occur at therapeutic dosage levels in a healthy patient?
A) allergic reactions
B) tetratogenic effects
C) idiosyncratic reactions
D) all of the above
D) all of the above
a drug licensed for humans and included in table 1. , MRL has to be established administering to dairy cattle should have a milk withdrawal period of?
A) at most 7 days WP
B) at most 28 days WP
C) at minimum 28 days WP
D) at minimum 7 days WP
D) at minimum 7 days WP
according to this type of medical substance both healthy and ill animals are mass treated?
A) Metaphalaxis
B) Mass treatment
C) always
D) prophalaxis
A) Metaphalaxis
what is the proportion of ionised and non ionised molecules of a weak acidic drug (PKa = 4.4) in blood
(PH= 7.4)?
A) 1:1
B) 100:1
C) 10:1
D) 1000:1
D) 1000:1
what the usual withdrawal period for meat, following application of human licensed medicine?
A) 7 days
B) 500 degree days
C) 28 days
D) 0 days
C) 28 days
How long do the withdrawal period usually last for fish at minimum, following application of a human licensed medicine?
A) 28 days
B) 500 degree days
C) 0 days
7 days
B) 500 degree days
The phenomenon in which two drugs produce opposite effects on a physiologic system but do not act at the same receptor site is?
A) chemical antagonism
B) physiological antagonism
C) complete antagonism
D) non - competitive antagonism
B) physiological antagonism
Two drugs A and B, have the same mechanism of action. Drug A in a dose of 5 mg produces the same magnitude of effect as drug B in a dose of 500 mg?
A) Drug B is less efficacious than drug A
B) the toxicity of drug A is lower than drug B
C) Drug A is 100 times more potent than drug B
D) Drug A has a shorter duration of action
C) Drug A is 100 times more potent than drug B
which substance is schedule 2?
A) cannabis
B) fentanyl
C) Diazepam
D) Phenobarbital
B) fentanyl
Qualitative and quantitative determination of the medicinal substances is not introduced in?
A) British veterinary formulary
B) Hungarian pharmocopeia
C) European pharmocopeia
D) British pharmocopeia
A) British veterinary formulary
the LD50 dose of a drug is?
A) 50% of the lethal dose in a man
B) 50% of the lethal dose in an experimental animal
C) the dose (mg/kg) that kills 50% of treated animals
D) half the dose that kills the treated animals
C) the dose (mg/kg) that kills 50% of treated animals
Among the environmental factors that may harm medicines, this stimulates oxidation or reducing processes?
A) Fungi
B) Humidity
C) Light
D) heat
C) Light
this category may play an important role in animal disease prevention, but they are not real drugs?
A) Prepared drugs
B) immunologicals
C) official drugs
D) biocides
D) biocides
how long does the WP usually last for eggs, following the application of an official prepared medicine?
A) 500 degree days
B) 0 days
C) 28 days
D) 7 days
D) 7 days
@ which temperature range is valid if the drug has to be stored in a cool place?
A) 15-25
B) 2-8
C) 8-15
D) 10-14
C) 8-15
what is written in the inscription in the case of a prepared medicine?
A) the name and amount of ingredients
B) the name, dosage, form and strength
C) the dosage form and container
D) the number of original packages
A) the name and amount of ingredients
what “medicines order 2001 UK” category can be supplied by pharmacist without any prescription?
A) P and PML
B) GSL, P, PML
C) GSL, and P
D) every “medicines order 2001” category
B) GSL, P, PML
quantal dose response curves are?
A) invalid in the case of inhibitors of drugs studied
B) used for determing the maximum efficacy of a drug
C) obtainable from the study of intact subjects but not from isolated tissues
D) used in determing therapeutic index of drug
D) used in determing therapeutic index of drug
This name of medical substances is given by pharmacopeia commissions to each compound?
A) chemical name
B) each drug name
C) Proprietary name
D) approved name
D) approved name