Antagonism - Study guides, Class notes & Summaries

False - correct answer True or False: an antagonist will behave in a similar manner to an endogenous substrate An antagonist blocks an endogenous substrate from binding to its receptor - correct answer How does an antagonist work? Bronchial Smooth Muscle Relaxation - correct answer Activation of B2-receptors in the lungs would produce what effect? Reduced Heart Rate and Contractility - correct answer Antagonism of B1-receptors in the heart would produce what effect? Enzymes catalyze ...

MN 553 UNIT 1 QUIZ | MN 553: ADVANCED PHARMACOLOGY & PHARMACOTHERAPEUTICS | COMPLETE TEST BANK | CHAPTERS 1-52 WITH CORRECT ANSWERS. Drugs administered via IV: 1 . Need to be lipid soluble in order to be easily absorbed 2 Begin distribution into the body immediately . 3 . Are easily absorbed if they are nonionized 4 . May use pinocytosis to be absorbed 14. When a medication is added to a regimen for a synergistic effect, the combined effect of the drugs is: 1 . The sum of the effe...

What differentiates SGAs from FGAs? SGAs have: D2 and 5HT2A receptor antagonism + Antidepressant action, treat pos and neg schizo sx, metabolic SE, D2D interactions, approved for schizophrenia, mania, and acute mania FGAs have positive symptom antipsychotic actions - EPS, hyperprolactinemia Mostly D2 receptor antagonism Which SGA has lowest EPS SE, but is associated with substantial risk of agranuloycytosis? Clozapine The lower D2 receptor action is probably why clozapine does not cause ...

©BRAINBARTER 2024/2025 Pharmacology Exam 1 - Multiple Choice Exam Questions With 100% Verified Answers 1. The study of drug absorption, distribution, metabolism, and excretion is known as A. pharmacotherapeutics B. pharmacodynamics C. pharmacokinetics D. pharmacy E. posology - answerC 2. The medical situation when a particular drug should not be administered is referred to as A. side effect B. adverse effect C. drug allergy D. contraindication E. antagonism - answerD 3. An unusu...

Competitive Antagonists correct answer: Compete with neurotransmitters for access to orthosteric binding sites on receptors *block responses to agonists How do competitive antagonists affect DRC? correct answer: Cause a rightward shift How do you reverse the effects of a antagonists? correct answer: Add more exogenous agonist or increase the concentration of endogenous for that receptor in order to overcome that antagonism When an antagonist competes with an agonist, does the anta...

PMHNP ACTUAL EXAM 2024 QUESTIONS WITH ANSWERS NEW UPDATE GRADE A+ 100% SCORES Which patient is at highest risk for SI A. 30y/o married AA female with previous SI attempt *1 risk factor B. 35 y/o single Asian male with previous SI attempt *3 risk factors C. 38 y/o single AA male who is a manager of a bank *2 risk factors D. 68 y/o single white male with depression *5 risk factors (age, male, white, depression)answer== D. 68 y/o single white male with depression *5 risk factors (age, ...

What differentiates SGAs from FGAs? SGAs have: D2 and 5HT2A receptor antagonism + Antidepressant action, treat pos and neg schizo sx, metabolic SE, D2D interactions, approved for schizophrenia, mania, and acute mania FGAs have positive symptom antipsychotic actions - EPS, hyperprolactinemia Mostly D2 receptor antagonism Which SGA has lowest EPS SE, but is associated with substantial risk of agranuloycytosis? Clozapine The lower D2 receptor action is probably why clozapine does not cause ...

• Quiz: 1 1out of 1 point A patient diagnosed with obsessive compulsive disorder has been taking a high-dose SSRI and is participating in therapy twice a week. He reports an inability to carry out responsibilities due to consistent interferences of his obsessions and compulsions. The PMHNP knows that the next step would be which of the following? The collect answer: B. Decrease his SSRI and add an MAOI. • Quiz: 2 Which statement best describes a pharmacological approach to tr...

1. Additive Chemical Reaction ANS This occurs when toxic chemicals add their effects together in producing a biological effect. 2. Antagonism ANS This occurs when the effect of two chemicals is less than expected. 3. Asphyxiants ANS These are chemicals that deprive the victim's body tissues of oxygen. Examples include carbon monoxide and hydrogen cyanide. 4. Carcinogens ANS These are known to cause cancer. This is a chronic effect and symptoms are not immediate. Examples include benzen...

PRITE Exam Solved Questions With Revised Correct Detailed Answers& Rationales >Latest Update>> 1. Which side effect occurs less frequently in pts treated with mirtazapine vs SSRIs? - ANSWER DIARRHEA 2. 29 y/o M h/o recurrent depression & 1.5 PPD smoking. Medication? - ANSWER BUPROPION 3. Mirtazapine is an antagonist at which receptor? - ANSWER ADRENERGIC ALPHA-2 4. The risk of increased psychosis for pts with psychotic disorders who take bupropion ...