Pharm Princ, Ortho, EENT, Derm, Neuro, Psych,
Urology, Resp, Endo QBank |500 questions with
correct answers|
The amino acid found in dairy products, fish, and eggs is tyrosine. The
amino acid from which tyrosine is made is: Correct Answer-
Phenylalanine
Which of the following actions trigger a rise in membrane or action
potential of a cell? Correct Answer-Opening of the voltage gated sodium
ions
The fusion of the synaptic vessels to the presynaptic plasma membrane
is preceded by the influx of: Correct Answer-Calcium ions
The intentional pharmacologic blockade of synaptic nicotinic
acetylcholine receptor at the neuromuscular junction is often used to:
Correct Answer-Paralyze muscles in a patient who is intubated
A chemical synapse differs from an electrical synapse in that the signal
transmission: Correct Answer-Requires a neurotransmitter
Electrical synapse differs from a chemical synapse in that signal
transmission: Correct Answer-Can occur in both directions
The first pass effect contributes to the oral bioavailability of a drug by:
Correct Answer-Decreasing the amount of the drug that is actually
,delivered into the general circulation after passing through the
gastrointestinal system and the liver
The ratio of minimum effective concentration (MEC) to minimum toxic
concentration (MTC) of a drug is the: Correct Answer-Therapeutic
window
Which of the following is a neurotransmitter within the parasympathetic
nervous system? Correct Answer-Acetylcholine
The most common method by which drugs are chemically altered within
the liver is: Correct Answer-Oxidation
Which of the following enzymes does NOT affect the first pass effect of
an orally administered drug? Correct Answer-Salivary enzymes
The pharmacodynamics of a medication would not be affected by:
Correct Answer-Absorption
The primary site of drug metabolism is the: Correct Answer-liver
The signal transduction process that carries transmitters (ie steroid
hormones) to distant sites via the circulatory system is know as the:
Correct Answer-Endocrine
,After the drug is metabolized by the liver and enters the bile, it is most
likely to be: Correct Answer-Fecally excreted
The term not associated with the pharmacokinetics of a drug is: Correct
Answer-Pharmacodynamics
To elicit an effective bioavailability response, drugs with a high affinity
for a receptor site need to be delivered: Correct Answer-In lower doses
Therapeutic indices of a drug should be determined from a serum sample
obtained during: Correct Answer-At steady state of the drug
Neurotransmitters are considered: Correct Answer-Chemical substances
The protein-bound part of a drug is: Correct Answer-Inactive and acts as
a reservoir
Fick's Law of Diffusion describes drug mobility as the: Correct Answer-
Passive diffusion of non-ionized drugs down a concentration gradient
from an area of high concentration to low concentration
Acetylcholine works at the neuromuscular junction to activate Correct
Answer-Skeletal muscles
Which of the following is not a plasma protein that binds to medications
Correct Answer-Gamma globulins
, Which of the following is considered a inhibitory neurotransmitter:
Correct Answer-Glycine
Drugs that accumulate and tissues: Correct Answer-Keep blood levels
from decreasing rapidly
The ion that is most critical in the release of the neurotransmitter from
the presynaptic neuron is: Correct Answer-Calcium
The translocation of a drug from one side of the biological barrier to
another is not completed the process of: Correct Answer-Laxation
The change of charge within a cell membrane due to the influx of
sodium ions causes: Correct Answer-Depolarization
Pharmacodynamic interactions that occur when two drugs act on distinct
receptors is known as: Correct Answer-Heterodynamic competitors
The term that describes movement of a drug among parts of the body is:
Correct Answer-Distribution
The process by which cells ingest extracellular fluid and its contents,
including protein-bound medications, is known as: Correct Answer-
Pinocytosis
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