Question

A nurse is collecting data from a client who has hypothyroidism and is to start taking levothyroxine. Which of the following over-the-counter medications should the nurse instruct the client to separate taking by 4 hr?

Answer 1

Correct Answers:

Calcium carbonate

Rationale :

🔷 Binding chelation: Calcium carbonate binds levothyroxine in the gut, forming insoluble complexes that impair absorption.

🔷 Timing rule: Separate calcium/iron/antacids and bile-acid sequestrants by ≥4 hours from levothyroxine to maintain therapeutic levels.

🔷 Clinical impact: Reduced absorption leads to persistently elevated TSH and hypothyroid symptoms despite adherence.

🔷 OTC vigilance: Many OTCs (e.g., calcium, iron, multivitamins, antacids) are common culprits; patients often don’t report them unless asked.

🔷 Administration best-practice: Take levothyroxine on an empty stomach, same time daily, with water; delay other meds/supplements accordingly.

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Answer 2

Correct Answers:

Amphojel

Rationale :

◆ Ingredient–brand link: Aluminum hydroxide is marketed as Amphojel (legacy brand), not PPIs like Prilosec/Prevacid or Protonix.

◆ Therapeutic class: An antacid; it neutralizes gastric acid after secretion, providing short-term relief.

◆ Adverse effect profile: Aluminum salts are associated with constipation and, with chronic use, hypophosphatemia.

◆ Drug–nutrient issues: Can bind phosphate and interfere with absorption of drugs (e.g., tetracyclines); separate dosing times.

◆ Use context: Often used PRN for dyspepsia; not first-line for erosive disease where H2RA/PPIs are preferred.

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Answer 3

Correct Answers:

Humalog, Humulin R, Humulin N, Lantus

Rationale :

💎 Match each type: Lispro = Humalog (rapid), Regular = Humulin R (short), NPH = Humulin N (intermediate), Glargine = Lantus (long).

💎 Onset spectrum: Rapid (≈15 min) → short (≈30–60 min) → intermediate (≈1–2 h) → long (≈1–4 h, essentially no peak for glargine).

💎 Dosing logic: Rapid/short cover meals; NPH provides basal/daytime coverage; glargine is once-daily basal with flat profile.

💎 Mixing rules: Do not mix glargine with other insulins; cloudy NPH can be mixed with rapid/short (clear to cloudy technique).

💎 Safety tie-in: Knowing brands prevents look-alike/sound-alike errors and aligns timing with the insulin’s pharmacokinetics.

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Answer 4

Correct Answers:

"That would release all the medication at once, rather than over time.”

Rationale :

◈ EC purpose: Enteric-coated (EC) aspirin bypasses the stomach to reduce gastric irritation and dissolves in the intestine.

◈ Crushing hazard: Crushing EC tablets destroys the coating, causing dose dumping (rapid release) and ↑ GI adverse effects.

◈ Stroke patient safety: In post-CVA patients, avoiding GI bleeding risk is crucial; maintain the intended release characteristics.

◈ Swallowing difficulties: Use liquid, dispersible, or alternative formulations if appropriate—not crushing EC.

◈ Teaching clarity: Provide plain-language rationale so patients understand why EC tablets must be swallowed whole.

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Answer 5

Correct Answers:

Limit fluid intake to prevent water intoxication

Rationale :

✔ Mechanism: Desmopressin/vasopressin are ADH analogs that increase renal water reabsorption.

✔ Risk: Excess intake + ADH effect can cause water intoxication → hyponatremia, headache, confusion, seizures.

✔ Monitoring: Teach daily weight, watch for neurologic signs, and report drowsiness or cramps promptly.

✔ Dosing nuances: Prefer evening dosing for nocturia; avoid fluid loading 1 hour before and 8 hours after dose (per product guidance).

✔ Population caution: Elderly and those with cardiac/renal disease are at higher risk; tailor fluids conservatively.

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Answer 6

Correct Answers:

“You will need to continue taking this medication for up to 6 weeks."

Rationale :

🔶 Drug class: Cimetidine is an H2-receptor antagonist that reduces gastric acid secretion.

🔶 Therapy duration: Duodenal ulcers typically require 4–6 weeks of H2RA therapy for mucosal healing.

🔶 Antacid spacing: If antacids are used, separate by ≥1 hour; taking an antacid before cimetidine is not recommended for effect.

🔶 Bedtime dosing: HS dosing can be beneficial due to nocturnal acid; “avoid at bedtime” is incorrect.

🔶 Interactions: Cimetidine inhibits CYP450, so review other meds (e.g., warfarin, phenytoin) for potential level increases.

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Answer 7

Correct Answers:

Carafate

Rationale :

🔵 Unique MOA: Sucralfate (Carafate) forms a viscous, protective barrier that adheres to ulcers, shielding from acid/pepsin/bile.

🔵 Dosing timing: Best on an empty stomach, typically QID (before meals and HS) for maximal mucosal coating.

🔵 Drug spacing: Can bind other drugs (e.g., fluoroquinolones); separate by ≥2 hours to avoid reduced absorption.

🔵 Adverse effects: Constipation is most common; encourage fluids/fiber if not contraindicated.

🔵 Role vs. antacids/PPIs: Provides local protection (not systemic acid suppression); often used as adjunct in ulcers.

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Answer 8

Correct Answers:

Lotronex

Rationale :

🟣 Indication: Alosetron (Lotronex) is a 5-HT3 antagonist indicated for severe IBS-D in women who failed conventional therapy.

🟣 Risk management: Carries a REMS/boxed warning for ischemic colitis and serious constipation—requires careful selection & consent.

🟣 Monitoring: Educate to stop immediately and seek care for new/worsening constipation, rectal bleeding, or abdominal pain.

🟣 Not to confuse: Names like losartan (ARB) or amoxicillin have different indications; Lotronex is GI-specific.

🟣 Start low–go slow: Begin at lower doses, titrate cautiously, and reassess benefit vs. risk regularly.

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Answer 9

Correct Answers:

Lactic acidosis

Rationale :

⭐ Signature hazard: Metformin’s rare but serious adverse effect is lactic acidosis (↑ lactate, anion gap acidosis, high mortality if missed).

⭐ Risk conditions: Renal impairment, hypoxia (HF, sepsis), hepatic disease, alcohol misuse, or iodinated contrast raise risk.

⭐ Recognition: Red flags include malaise, myalgias, somnolence, abdominal distress, tachypnea, and low bicarbonate on labs.

⭐ Prevention: Hold metformin for contrast studies and in acute illness with hypoxia/dehydration; dose by eGFR.

⭐ Common but lesser AEs: GI upset (nausea/diarrhea) is frequent but not the sentinel toxicity—titrate slowly with food to improve tolerance.

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Answer 10

Correct Answers:

Actos

Rationale :

🟩 Brand tie-in: Pioglitazone = Actos (a thiazolidinedione, TZD); not Invokana (SGLT2), Glucophage (metformin), or Glucotrol (glipizide).

🟩 MOA: PPAR-γ activation improves insulin sensitivity in adipose/muscle, lowering glucose without stimulating insulin release.

🟩 Onset considerations: Clinical effect may take several weeks; plan follow-up A1C and glucose monitoring accordingly.

🟩 Safety profile: Watch for fluid retention/edema, potential HF exacerbation, weight gain, and bone fracture risk.

🟩 Liver & bladder notes: Check LFTs at baseline; avoid in active bladder cancer or uninvestigated hematuria per labeling/precautions.

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Custom MS 2 Med Know Fall 2025

No.

1 :
A nurse is collecting data from a client who has hypothyroidism and is to start taking levothyroxine. Which of the following over-the-counter medications should the nurse instruct the client to separate taking by 4 hr?

2 :
What is the brand/trade name for aluminum hydroxide?

3 :
What is the brand/trade names for insulin lispro, regular, NPH, insulin glargine?

5 :
What instructions should be provided for a client taking desmopressin or vasopressin?

6 :
A nurse is reinforcing teaching with a client who has a duodenal ulcer and a new prescription for cimetidine. Which of the following instructions should the nurse include?

7 :
What is the brand/trade name for sucralfate?

8 :
What is the brand/trade name for alosetron?

9 :
What are adverse drug reactions associated with metformin?

10 :
What is the brand/trade name for pioglitazone?

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Custom MS 2 Med Know Fall 2025

No.

1 : A nurse is collecting data from a client who has hypothyroidism and is to start taking levothyroxine. Which of the following over-the-counter medications should the nurse instruct the client to separate taking by 4 hr?

2 : What is the brand/trade name for aluminum hydroxide?

3 : What is the brand/trade names for insulin lispro, regular, NPH, insulin glargine?

5 : What instructions should be provided for a client taking desmopressin or vasopressin?

6 : A nurse is reinforcing teaching with a client who has a duodenal ulcer and a new prescription for cimetidine. Which of the following instructions should the nurse include?

7 : What is the brand/trade name for sucralfate?

8 : What is the brand/trade name for alosetron?

9 : What are adverse drug reactions associated with metformin?

10 : What is the brand/trade name for pioglitazone?

1 :
A nurse is collecting data from a client who has hypothyroidism and is to start taking levothyroxine. Which of the following over-the-counter medications should the nurse instruct the client to separate taking by 4 hr?

2 :
What is the brand/trade name for aluminum hydroxide?

3 :
What is the brand/trade names for insulin lispro, regular, NPH, insulin glargine?

5 :
What instructions should be provided for a client taking desmopressin or vasopressin?

6 :
A nurse is reinforcing teaching with a client who has a duodenal ulcer and a new prescription for cimetidine. Which of the following instructions should the nurse include?

7 :
What is the brand/trade name for sucralfate?

8 :
What is the brand/trade name for alosetron?

9 :
What are adverse drug reactions associated with metformin?

10 :
What is the brand/trade name for pioglitazone?