Download PDF – RRB PH UT25 – Clinical Pharmacy Practice Test: Inventory Control, Drug Interactions & TDM

RRB PH UT25 – Clinical Pharmacy Practice Test: Inventory Control, Drug Interactions & TDM

Q1. What happens when tetracyclines are taken with oral iron?

A) Accelerated gastrointestinal absorption of iron leading to hemochromatosis

B) Spontaneous precipitation of ferric oxide crystals in biliary canaliculi

C) Formation of non-absorbable chelates, drastically decreasing the bioavailability of both agents

D) Inhibition of bacterial protein synthesis is potentiated five-fold

Q1. टेट्रासाइक्लिन को मौखिक आयरन के साथ लेने पर क्या होता है?

A) आयरन का GI अवशोषण बढ़कर हीमोक्रोमैटोसिस

B) पित्त नलिकाओं में फेरिक ऑक्साइड क्रिस्टल

C) अवशोषित न होने वाले चेलेट बनकर दोनों की जैवउपलब्धता घटती है

D) जीवाणु प्रोटीन संश्लेषण पाँच गुना बढ़ता है

Answer: (C)

Tetracyclines possess a multi-ring naphthacene carboxamide core with phenolic and carbonyl oxygen atoms that act as bidentate ligands, forming stable, insoluble coordination chelates with divalent and trivalent cations such as Fe2+, Ca2+, and Mg2+. When taken concurrently with ferrous sulfate, both the antibiotic and the iron supplement fail to be absorbed from the gastrointestinal tract, causing therapeutic failure of both therapies.

टेट्रासाइक्लिन और आयरन के बीच chelation से दोनों का GI अवशोषण घटता है। इन्हें साथ लेने से बचें/समय अंतर रखें।

Q2. What is the conventional therapeutic serum range for theophylline?

A) 1 to 5 mcg/mL

B) 25 to 40 mcg/mL

C) 10 to 20 mcg/mL

D) 50 to 100 mcg/mL

Q2. थियोफिलीन की पारंपरिक चिकित्सीय सीरम सीमा क्या है?

A) 1–5 mcg/mL

B) 25–40 mcg/mL

C) 10–20 mcg/mL

D) 50–100 mcg/mL

Answer: (C)

The conventional therapeutic range for theophylline is 10 to 20 mcg/mL (with modern guidelines often targeting 5 to 15 mcg/mL for improved safety). Concentrations below 5 to 10 mcg/mL exhibit sub-therapeutic bronchodilator efficacy, whereas serum concentrations exceeding 20 mcg/mL produce adverse effects including cardiac arrhythmias, nausea, vomiting, hypokalemia, and intractable seizures.

थियोफिलीन की पारंपरिक सीमा 10–20 mcg/mL है; आधुनिक सुरक्षित लक्ष्य कई स्थितियों में 5–15 mcg/mL रखे जाते हैं। >20 mcg/mL पर विषाक्तता बढ़ती है।

Q3. What is the conventional gentamicin peak target with multiple daily dosing?

A) 0.5 to 1.0 mcg/mL

B) 15 to 25 mcg/mL

C) 4 to 10 mcg/mL

D) 30 to 50 mcg/mL

Q3. दिन में कई बार जेंटामाइसिन देने पर पारंपरिक पीक लक्ष्य क्या है?

A) 0.5–1.0 mcg/mL

B) 15–25 mcg/mL

C) 4–10 mcg/mL

D) 30–50 mcg/mL

Answer: (C)

In conventional multiple-dose daily regimens of gentamicin, target therapeutic peak concentrations (drawn 30 minutes after completion of IV infusion) are 4 to 10 mcg/mL to ensure concentration-dependent bactericidal killing. Target trough levels (drawn immediately prior to the next scheduled dose) must remain below 1 to 2 mcg/mL to minimize the risk of drug accumulation in the renal cortex and inner ear hair cells, preventing nephrotoxicity and ototoxicity.

Conventional multiple-dose gentamicin में peak लक्ष्य प्रायः 4–10 mcg/mL होता है; target संक्रमण, dose regimen और assay protocol के अनुसार बदलता है। Trough सामान्यतः

Q4. With 50 vials/day use and 10-day lead time, what is ROL with no safety stock?

A) 5 vials

B) 100 vials

C) 250 vials

D) 500 vials

Q4. यदि दैनिक उपयोग 50 वायल और लीड टाइम 10 दिन है, तो शून्य सेफ्टी स्टॉक पर ROL क्या होगा?

A) 5 वायल

B) 100 वायल

C) 250 वायल

D) 500 वायल

Answer: (D)

Reorder Level (ROL) is the specific inventory threshold that triggers a purchase replenishment order. Mathematically: ROL = (Lead Time in days × Average Daily Usage) + Safety Stock. With zero safety stock: ROL = 10 days × 50 vials/day = 500 vials. When physical stock depletes to 500 vials, an order must be placed immediately to prevent a stockout before the new delivery arrives.

ROL = दैनिक उपयोग × lead time + safety stock = 50 × 10 + 0 = 500 वायल।

Q5. What happens when ciprofloxacin is taken with dairy or Al/Mg antacids?

A) Decreased ciprofloxacin bioavailability due to the formation of insoluble chelates

B) Accelerated renal tubular secretion of fluoroquinolones

C) Severe systemic hypercalcemia and metabolic alkalosis

D) Immediate enzymatic degradation of the quinolone carboxylic acid group

Q5. सिप्रोफ्लॉक्सासिन को डेयरी या Al/Mg एंटासिड के साथ लेने पर क्या होता है?

A) अघुलनशील चेलेट बनने से सिप्रोफ्लॉक्सासिन की जैवउपलब्धता घटती है

B) फ्लुओरोक्विनोलोन का रीनल ट्यूबुलर स्राव बढ़ता है

C) गंभीर हाइपरकैल्सीमिया और मेटाबोलिक अल्कालोसिस

D) क्विनोलोन कार्बोक्सिलिक समूह का तत्काल एंजाइमिक विघटन

Answer: (A)

Fluoroquinolones (such as ciprofloxacin and levofloxacin) possess a 4-keto and 3-carboxylic acid group that forms stable, insoluble coordination chelates with multivalent polyvalent cations (Ca2+, Mg2+, Al3+, Fe2+). Co-administration with milk, yogurt, or cation-rich antacids drastically reduces the gastrointestinal absorption and bioavailability of ciprofloxacin by up to 50% to 80%, leading to clinical failure of antibiotic therapy.

कैल्शियम, मैग्नीशियम, एल्युमिनियम या आयरन सिप्रोफ्लॉक्सासिन के साथ चेलेट बनाते हैं, जिससे उसका GI अवशोषण और जैवउपलब्धता घटती है।

Q6. Which ABC–VED category needs the strictest inventory control?

A) Category C-D items

B) Category A-V items

C) Category B-E items

D) Category C-V items

Q6. ABC–VED की किस श्रेणी को सबसे कड़ा इन्वेंटरी नियंत्रण चाहिए?

A) श्रेणी C-D

B) श्रेणी A-V

C) श्रेणी B-E

D) श्रेणी C-V

Answer: (B)

The ABC-VED matrix integrates cost and criticality. The Category A-V group comprises drugs that are both high in monetary consumption value (Category A) and vital for patient survival (Category V). Because they represent substantial capital investment and are irreplaceable in medical emergencies, A-V drugs require strict daily executive inventory surveillance, low safety stocks with zero stockouts, and tight procurement oversight.

ABC–VED मैट्रिक्स में A-V वस्तुएँ उच्च लागत और जीवनरक्षक दोनों होती हैं; इसलिए इन पर कठोर निगरानी और नियंत्रण आवश्यक है।

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