MEDICOLOGY: Anticancer Drugs MCQS. 70

Tuesday, April 5, 2022

Anticancer Drugs MCQS. 70

01. Which of the following statements about Tamoxifen is wrong?
A. Selective estrogen modulator (SERM)
B. Estrogen antagonist in bone and endometrium 
C. Estrogen Antagonist in breast tissue 
D. Treat estrogen receptor positive breast cancer 
E. Prevent breast cancer 

Answer: B. Estrogen antagonist in bone and endometrium 
Tamoxifen is estrogen antagonist in breast tissue and agonist in other tissues such as bone and endometrium 

02. Which of the following statements about Tamoxifen is wrong?
A. Compete estrogen to bind with estrogen receptor
B. Inhibit estrogen induced growth of breast cancer 
C. Deplete estrogen receptors ( down regulation)
D. Suppress growth factors and natural hormones 
E. Estrogen antagonist in bone and endometrium 

Answer: E. Estrogen antagonist in bone and endometrium 

03. Which of the following is the common adverse effect of steroid hormones and their antagonists?
A. Hypertension 
B. Dry cough 
C. Diarrhoea 
D. Hot flashes 
E. Hypocalcemia

Answer: D. Hot flashes 

04. A drug bind to estrogen receptor and causes estrogen recpetor down regulation are following?
A. Fulvestrant
B. Tamoxifen 
C. Raloxifene 
D. B & C
E. All of the above 

Answer: E. All of the above 

05. Which of the following drugs responsible for inhibition of synthesis of estrogen from androstenedione?
A. Tamoxifen 
B. Aromatase inhibitors
C. Antiandrogens
D. Platinum coordination complexes 
E. Topoisomerase inhibitors 

Answer: B. Aromatase Inhibitors 
Anstrozole, letrozole, Exemestane

06. Which of the following drugs causes irreversible inhibition of synthesis of estrogen from androstenedione?
A. Tamoxifen 
B. Raloxifene  
C. Antiandrogens
D. Platinum coordination complexes 
E.  Exemestane 

Answer: E. Exemestane 

 07. Which of the following drugs is steroidal irreversible inhibitors of synthesis of estrogen from androstenedione?
A. Tamoxifen 
B. Anstrozole 
C. Antiandrogens
D. Platinum coordination complexes 
E.  Raloxifene  

Answer: B. Anstrozole  

08. Which of the following drugs is nonsteroidal inhibitor of synthesis of estrogen from androstenedione?
A. Tamoxifen 
B. Anstrozole 
C. Antiandrogens
D. Platinum coordination complexes 
E.  Exemestane 

Answer: B. Anstrozole 
Along with letrozole

09. Which of the following drugs occupy the GnRH receptor in the pituitary to desensitise it leading to inhibit the release of FSH and LH?
A. Leuprolide
B. Goserelin
C. Triptorelin
D. A & B
E. All of the above 

Answer: E. All of the above 
Note: GnRH is secreted by hypothalamus and stimulates the anterior pituitary to secrete the gonadotropin hormones that is luteinizing hormone (LH) and Follicle stimulating hormone (FSH). LH is the primary stimulus for secretion of testosterone by the testes while FSH stimulate the secretion of estrogen. These drugs occupy the GnRH receptor present in the anterior pituitary.

10. Which of the following drugs occupy the GnRH receptor in the pituitary to desensitise it leading to inhibit the release of FSH and LH?
A. Leuprolide
B. Tamoxifen 
C. Anastrozole
D. A & B
E. All of the above 

Answer: A. Leuprolide 
Along with Goserelin and Triptorelin

11. A drug that competes with the natural hormone for binding to the androgen receptor and prevent its action in prostate?
A. Leuprolide
B. Tamoxifen 
C. Anastrozole
D. Flutamide
E. All of the above

Answer: D. Flutamide 
Along with Nilutamise, Biculutamide, Enzalutamide oral anti androgens.

12. A patient was mistakenly administered vincristine instead of cytarabine intrathecally. What is the likely outcome of this drug error?
A. Neuropathy 
B. Renal failure 
C. Hearing loss
D. Death 

Answer: D. Death 
Vincristine is fatal if given intathecally. 

13. Which of the following drug causes death when administered intrathecally?
A. Vincristine 
B. Cytarabine
C. Cisplatin
D. Vinblastine
E. Vinorelbine 

Answer: A. Vincristine 
 
14. Which of the following drugs treatment require vigorously hydration when used?
A. Cisplatin
B. Carboplatin
C. Oxaliplatin
D. A & B
E. All of the above 

Answer: A. Cisplatin  
Hydration is recommended to induce diureses and reduce the concentration of Cisplatin in kidney. Because this drug causes nephrotoxicity involving the distal convoluted tubule and collecting ducts. 

Following drugs belongs to  platinum coordination complexes?
A. Cisplatin
B. Carboplatin
C. Oxaliplatin

15. Which of the following drugs causes most  Ototoxicity with high frequency hearing loss and tinnitus?
A. Cisplatin
B. Carboplatin 
C. Oxaliplatin 
D. A & B
E. All of these 

Answer: A. Cisplatin

16. A drug having high incidence of nausea and vomiting after administration so premedication with antiemetic agent is required?
A. Cisplatin
B. Carboplatin 
C. Oxaliplatin 
D. A & B
E. All of these 

Answer: A. Cisplatin

17. Which chemotherapy drug can cause nephrotoxicity, neurotoxicity, Ototoxicity, electrolyte abnormalities and severe nausea and vomiting?
A. Cisplatin
B. Etoposide
C. Oxaliplatin 
D. Cyclophosphamide 

Answer: A. Cisplatin

18. Development of signs of which condition should be monitored in patients receiving chemotherapy with ifosfamide?
A. Cardio toxicity 
B. Rash
C. Neurotoxicity 
D. Hand foot syndrome 

Answer: C. Neurotoxicity 

19. Hand foot syndrome is the adverse effect of following drug?
A. Cisplatin
B. Carboplatin 
C. Oxaliplatin 
D. 5-FU and darivatives
E.  Vincristine 

Answer: D. 5-FU and derivative 

20. A patient is about to begin therapy with doxorubicin and cyclophosphamide. Which test should be ordered for baseline assessment before treatment?
A. Baseline PFTs
B. Baseline stress test
C. Baseline echocardiogram 
D. Baseline urinalysis 

Answer: C. Baseline echocardiogram 

No comments:

Post a Comment