--- title: Most Missed Question in IM Prep This Week - Hypertension Thresholds description: "Internal Medicine: quick answer to this week's most-missed hypertension question and why JNC‑8 vs 2017 ACC/AHA thresholds differ. Read rationale." image: https://challengercme.com/hubfs/bloodpressure-1.png --- [![Med-Challenger-green-logo-1024x244](https://challengercme.com/hubfs/Med-Challenger-green-logo-1024x244.webp) ](https://challengercme.com/) - [SHOP EXAM PREP & CME ](https://challengercme.com/blog/most-missed-question-in-internal-medicine-this-week071725#) ### [EMERGENCY MEDICINE](https://challengercme.com/emergency-medicine-exam-review-cme-course) [ABEM exam prep](https://challengercme.com/emergency-medicine-exam-review-cme-course), [MyEMCert](https://challengercme.com/emergency-medicine-myemcert-exam-review-course), etc. ### [FAMILY MEDICINE](https://challengercme.com/family-medicine-exam-review-cme-course) [ABFM exam prep](https://challengercme.com/family-medicine-exam-review-cme-course), [ABFM KSA](https://challengercme.com/family-medicine-moc-ksa-course), etc. ### [INTERNAL MEDICINE ABIM exam prep, MOC points, etc.](https://challengercme.com/internal-medicine-exam-review-cme-course) ### [OBGYN ABOG exam prep, CREOG, etc.](https://challengercme.com/obgyn-exam-review-cme-course) ### [PEDIATRICS ABP exam prep, MOCA-PEDS, etc.](https://challengercme.com/pediatric-medicine-exam-review-cme-course) ### [PEDIATRIC EM](https://challengercme.com/pediatric-emergency-medicine-3rd-edition) [ABP/ABEM exam prep Ed.3](https://challengercme.com/pediatric-emergency-medicine-3rd-edition), [Ed.2](https://challengercme.com/pediatric-emergency-medicine-pack2), etc. ### [SPECIAL PURPOSE / SPEX FSMB exam prep, etc.](https://challengercme.com/special-purpose-exam-review-spex-exam-preparation-course) ### [PHYSICIAN ASSISTANT](https://challengercme.com/physician-assistant-exam-review-cme-course) [PANCE / PANRE](https://challengercme.com/physician-assistant-exam-review-cme-course), [CAQ-EM](https://challengercme.com/pa-caq-em-review-course), etc ### [NURSE PRACTITIONER](https://challengercme.com/family-nurse-practitioner-exam-review-cme-course) [FNP](https://challengercme.com/family-nurse-practitioner-exam-review-cme-course), [ENP](https://challengercme.com/emergency-nurse-practitioner-exam-review-cne-course), [AGNP](https://challengercme.com/adult-gerontology-nurse-practitioner-exam-review-cne-course), [PNCB/CPNP](https://challengercme.com/pediatric-nurse-practitioner-exam-review-cne-course), etc. ### [NURSING / NCLEX NCLEX, CNE, etc.](https://challengercme.com/nursing-certification-nclex-exam-review-cne-courses) ### [STATE-REQUIRED CME / CE State CME requirements, etc.](https://challengercme.com/state-required-cme) ### [JOINT COMMISSION CME](https://challengercme.com/stroke-center-ce-review-course) [Stroke](https://challengercme.com/stroke-center-ce-review-course), [Cardiac](https://challengercme.com/cardiac-center-ce-review-course), [Trauma](https://challengercme.com/trauma-center-ce-review-course), [ALS](https://challengercme.com/advanced-life-support-and-resuscitation-center-ce-review-course), etc. ### [PROFESSIONALISM CME Professionalism review with CME](https://challengercme.com/professionalism-review-course) ### [DERMATOLOGY CME Dermatology review with CME](https://challengercme.com/dermatology-review-course) ### [USMLE STEP 2CK / STEP 3 USMLE exam prep, etc.](https://challengercme.com/usmle-certification-exam-review-clerkship-exams-shelf-exam-review) - [INSTITUTIONS ](https://challengercme.com/atlas-pro-inst) - [BLOG ](https://challengercme.com/blog) - [SUPPORT ](https://support.challengercme.com/knowledge) [SIGN IN ](https://fuse.challengercme.com/sign-in?redirectURL=%2Fuserdash) internal medicine # Most Missed Question in IM Prep This Week - Hypertension Thresholds Internal Medicine: quick answer to this week's most-missed hypertension question and why JNC‑8 vs 2017 ACC/AHA thresholds differ. Read rationale. [ Challenger Corporation ](https://challengercme.com/blog/author/challenger-corporation) Jul 17, 2025 [Commonly Missed Questions](https://challengercme.com/blog/tag/commonly-missed-questions) [internal medicine](https://challengercme.com/blog/tag/internal-medicine) ### < [All Posts](https://challengercme.com/blog) ABIM Exam Prep + CME Med-Challenger Internal Medicine Pass-guaranteed ABIM exam review with CME built-in. Try it for free. On sale now. [START IM REVIEW](https://fuse.challengercme.com/fulltrial/212) --- ### Share this article [mailto:?subject=Check%20out%20https://challengercme.com/blog/most-missed-question-in-internal-medicine-this-week071725&utm_medium=social&utm_source=email%20&body=Check%20out%20https://challengercme.com/blog/most-missed-question-in-internal-medicine-this-week071725&utm_medium=social&utm_source=email](mailto:?subject=Check%20out%20https://challengercme.com/blog/most-missed-question-in-internal-medicine-this-week071725&utm_medium=social&utm_source=email%20&body=Check%20out%20https://challengercme.com/blog/most-missed-question-in-internal-medicine-this-week071725&utm_medium=social&utm_source=email) ### Subscribe ### Subscribe ![Most Missed Question Internal Medicine hypertension JNC‑8 vs 2017 ACC/AHA](https://challengercme.com/hubfs/bloodpressure-1.png) 2017 ACC‑AHA uses a 130/80 mm Hg threshold for stage 1 hypertension; JNC‑8 uses higher BP targets for some older adults (often 140–150/90). See the brief rationale and guideline links below. A 55-year-old white man has been diagnosed with essential hypertension after his blood pressure consistently measured in the 150/90 mm Hg range on several occasions. [![Want more control over your program's outcomes? Learn about Institutional Programs](https://no-cache.hubspot.com/cta/default/9106197/interactive-194510541423.png) ](https://challengercme.com/hs/cta/wi/redirect?encryptedPayload=AVxigLJWNgz9mmALlom%2F%2FY3%2B7SUHenJluh%2F%2Fj0jh9BubY7CIRDC0Alvl8fPfjjLKdAU0x5UgAR%2B7llf5MEFll6JRC%2FWC3bQtU0dXkOMAczMxhtvZDhjbKzNuRdvOF2gk67T301V5BtjXeTfZTBuXkbvpH%2B3zS%2Fu1cVFXGiylCVS2VojVDNl5613GQf3mIDywHw%3D%3D&webInteractiveContentId=194510541423&portalId=9106197) He has no other medical problems and is otherwise healthy. He does not smoke, he exercises regularly, and his laboratory values show normal liver and kidney functions. His screening glycated hemoglobin level is 5.2 g/dL. Which of the following classes of antihypertensive medications would be an appropriate first-line antihypertensive medication for this patient? **Answer Options:** 1. Current national guidelines have conflicting recommendations about starting with a thiazide diuretic alone versus a 2-drug combination. 2. Thiazide diuretic and ACE inhibitor 3. Thiazide diuretic and calcium channel blocker 4. Thiazide diuretic and beta-blocker There were a lot of hypertension related misses in the IM arena this week, ranging from pregnancy to appropriate guidelines to follow. This is one of the guideline problems. The older JNC guidelines recommend starting with one first line agent. The 2017 ACC/AHA guidelines split hypertension into ‘stage 1’ and ‘stage 2’, and recommends starting two first-line agents (thiazide, ACE-I/ARB, or CCB). This conflict (at least at the textbook level) is “start one and then add” versus “go ahead and start two if BP is that high”. 🙂 In real life, with low cardiac risk, you’ve got strong recommendations for lifestyle changes, sometimes alongside drug therapy, and then a 3 to 6 month evaluation. Thiazide diuretics are common first drug therapy (e.g. chlorthalidone 12.5 mg–25 mg daily). If that doesn’t work, or the patient is still eating Cheeto’s, calcium channel blocker or ACE-inhibitor/ARB. There are low-dose single pill combinations, but usually used after determining tolerance. And there are loads of individualization depending on comorbidities, side effects, and borderline renal function, which is why the question stem specifies race. *Complicated, but clue in on the “no other medical problems” part of the stem when you see a question like this.*   ## **Why This IM Question Is Often Missed** - **Guideline Nuance:** Learners recall that thiazide diuretics are first-line but are unsure when to use monotherapy versus combination therapy, since different guidelines (JNC 8 vs. 2017 ACC/AHA) offer slightly different thresholds. - **Combination Temptation:** The presence of multiple appealing “two-drug” regimens (diuretic+ACE-I, diuretic+CCB, diuretic+β-blocker) distracts from recognizing that this patient, with isolated stage 1 hypertension (150/90 mm Hg), may start with monotherapy.   ## **What the Distractors Indicate** | **Option** | **What It Tests / Implies** | **Why It’s Wrong Here** | | --- | --- | --- | | Thiazide + ACE inhibitor | Understanding of complementary RAAS inhibition | Overly aggressive for stage 1 HTN; guidelines support single-drug initiation in uncomplicated patients. | | Thiazide + Calcium channel blocker | Knowledge of synergistic afterload reduction | Unnecessary dual therapy when BP is only moderately elevated; combination reserved for stage 2 or high risk. | | Thiazide + β-blocker | Recognition of rate control benefits | β-blockers are not first-line for uncomplicated HTN without compelling cardiac indication; over-treatment. |   ## **High-Yield Pearl** > In patients with uncomplicated stage 1 hypertension, start with a thiazide diuretic—combination therapy is reserved for higher stages or specific comorbidities.   ## **Core Learning Objectives** 1. Recognize first-line antihypertensive drug classes for uncomplicated essential hypertension per contemporary guidelines. 2. Understand when to escalate from monotherapy to initial combination therapy based on blood pressure stage.   ## **The “Test Trick” at Play** The exam presents three plausible two-drug regimens to lure examinees into overthinking “what else could I add,” when the key is to note that this patient has only stage 1 hypertension without comorbidities. The trap is conflating “more agents = better control” with guideline-driven thresholds for combination initiation. ## [![Want more control over your program's outcomes? 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In uncomplicated stage 1 HTN, thiazides are first-line. - **If you chose B, C, or D:** - **B:** Review: Dual therapy is indicated for stage 2 HTN (≥160/100 mm Hg) or high-risk; not stage 1. - **C:** Review: β-blockers aren’t first-line absent specific cardiac indications. - **D:** Review: Loop diuretics are reserved for volume overload states, not uncomplicated HTN. ### **Internal Medicine Practice **Question 2 A 48-year-old man with CKD stage 3 and BP 148/88 mm Hg is started on therapy. Which is optimal? A. ACE inhibitor monotherapy B. Thiazide monotherapy C. β-blocker + thiazide D. Calcium channel blocker monotherapy Answer and Remediation - **If you chose A:** Correct response! In CKD with albuminuria, ACE inhibitors are preferred first-line. - **If you chose B, C, or D:** - **B:** Review: Thiazides lose efficacy in eGFR <30 mL/min; plus ACE-I preferred for renal protection. - **C:** Review: Combination not needed at this BP level; plus thiazide less effective in CKD. - **D:** Review: CCBs are acceptable but ACE-I offers renal benefit here. ### **Internal Medicine Practice **Question 3 A 70-year-old man with BP 165/95 mm Hg and no comorbidities requires initial treatment. Best choice? A. ACE inhibitor monotherapy B. Thiazide diuretic + calcium channel blocker C. β-blocker monotherapy D. Loop diuretic + ACE inhibitor Answer and Remediation - **If you chose B:** Correct response! Stage 2 HTN (≥160/100 mm Hg) warrants initial dual therapy per ACC/AHA 2017. - **If you chose A, C, or D:** - **A:** Review: Monotherapy inadequate for stage 2 HTN. - **C:** Review: β-blockers not first-line; plus monotherapy insufficient. - **D:** Review: Loop diuretics not indicated without volume overload; combination too complex initially. ### **Internal Medicine Practice **Question 4 A 54-year-old Asian woman with isolated systolic HTN of 158/82 mm Hg and no other issues. First-line? A. Thiazide monotherapy B. Calcium channel blocker monotherapy C. ACE inhibitor + thiazide D. β-blocker + CCB Answer and Remediation - **If you chose B:** Correct response! In older patients with isolated systolic HTN, CCBs are particularly effective. - **If you chose A, C, or D:** - **A:** Review: Thiazides work but CCBs may better address arterial stiffness in isolated systolic HTN. - **C:** Review: Stage 2 systolic alone might warrant combo, but monotherapy often sufficient first. - **D:** Review: Unnecessary dual therapy without evidence of heart rate issues or severe HTN. ### **Internal Medicine Practice **Question 5 A 45-year-old non-Black man with BP 142/86 mm Hg and a history of gout. Which is best initial therapy? A. Thiazide diuretic B. ACE inhibitor monotherapy C. β-blocker monotherapy D. Loop diuretic Answer and Remediation - - **If you chose B:** Correct response! ACE inhibitors avoid hyperuricemia exacerbation. - **If you chose A, C, or D:** - **A:** Review: Thiazides can worsen gout via urate retention. - **C:** Review: β-blockers are not preferred first-line absent other indications. - **D:** Review: Loop diuretics similarly risk hyperuricemia and aren’t first-line in uncomplicated HTN.   ## **Mini Case Discussion Prompt** > Compare the pros and cons of initiating combination therapy versus monotherapy in a patient with stage 2 hypertension but borderline renal function (eGFR 45 mL/min)—how do comorbidities sway your choice of agents and thresholds? --- This question appears in [Med-Challenger Internal Medicine Review with CME](https://challengercme.com/internal-medicine-exam-review-cme-course) [Try for free and save](https://fuse.challengercme.com/fulltrial/212). Ace your exams and meet your CME/MOC requirements for just $35 a month! 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All rights reserved [Privacy Policy](https://support.challengercme.com/knowledge/what-are-your-terms-of-service-privacy-policy-user-agreement) ```json { "@context" : "https://schema.org", "@id" : "https://challengercme.com/blog#webpage", "@type" : "WebPage", "description" : "The Challenger Medical Education Blog offers informative patient cases, medical certification exam preparation courses and board exam review tips.", "inLanguage" : "en", "isPartOf" : { "@type" : "WebSite", "name" : "Med-Challenger", "url" : "https://challengercme.com/" }, "mainEntityOfPage" : { "@id" : "https://challengercme.com/blog", "@type" : "WebPage" }, "name" : "Challenger Medical Education Blog", "primaryImageOfPage" : { "@type" : "ImageObject", "url" : "https://challengercme.com/hubfs/Webpage%20Featured%20Images/Medical%20Education%20Blog%20-%20Free%20CME%20resources%2c%20certification%20exam%20tips%2c%20clinical%20challenge%20questions%20and%20more.png" }, "publisher" : { "@type" : "Organization", "name" : "Challenger Corporation", "url" : "https://challengercme.com/" }, "url" : "https://challengercme.com/blog" } ``` ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "about" : [ "hypertension", "blood pressure thresholds", "2017 ACC-AHA guidelines", "JNC-8", "stage 1 hypertension", "antihypertensive therapy", "thiazide diuretics", "calcium channel blockers", "ACE inhibitors", "medical education", "exam preparation", "board exam review" ], "articleSection" : "Internal Medicine", "author" : { "@type" : "Organization", "name" : "Challenger Corporation" }, "dateModified" : "2025-11-26T18:10:23.136Z", "datePublished" : "2025-07-17T14:26:45.000Z", "description" : "Internal Medicine: quick answer to this week's most-missed hypertension question and why JNC‑8 vs 2017 ACC/AHA thresholds differ. Read rationale.", "headline" : "Most Missed Question in IM Prep This Week - Hypertension Thresholds", "image" : [ { "@type" : "ImageObject", "caption" : "Internal Medicine exam review course", "description" : "Internal Medicine exam review course" }, { "@type" : "ImageObject", "caption" : "Hypertension exam question", "description" : "Internal Medicine exam prep - What drug, if any, should be started to control hypertension?" } ], "inLanguage" : "en-US", "keywords" : [ "hypertension thresholds", "thiazide diuretic", "2017 ACC/AHA", "JNC-8", "internal medicine", "exam prep", "most missed question", "antihypertensive therapy", "stage 1 hypertension" ], "mainEntityOfPage" : { "@id" : "https://challengercme.com/blog/most-missed-question-in-internal-medicine-this-week071725", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://challengercme.com/logo.png" }, "name" : "Challenger Corporation" } } ``` ```json { "@context" : "https://schema.org", "@type" : "QAPage", "mainEntity" : { "@type" : "Question", "acceptedAnswer" : { "@type" : "Answer", "text" : "For an otherwise healthy patient with isolated stage 1 hypertension (about 150/90 mm Hg), the article recommends starting thiazide diuretic monotherapy (for example, chlorthalidone 12.5–25 mg daily). The content notes guideline nuance: JNC‑8 supports single‑agent initiation and the 2017 ACC/AHA separates stage 1 vs stage 2 (with dual therapy more relevant to higher BP), so combination therapy is generally reserved for stage 2 or higher-risk patients." }, "name" : "First-line therapy for uncomplicated stage 1 hypertension (150/90 mm Hg)?", "text" : "A 55-year-old white man has essential hypertension with consistent measurements around 150/90 mm Hg on multiple occasions. He is otherwise healthy, non-smoker, exercises regularly, has normal liver and kidney function, and a screening A1c of 5.2 g/dL. Which of the following classes of antihypertensive medications would be an appropriate first-line antihypertensive medication for this patient? (Answer choices in the article present two-drug combinations.)" } } ``` ```json { "@context" : "https://schema.org", "@type" : "ItemList", "description" : "Exam-style review questions based on this article’s teaching points.", "itemListElement" : [ { "@type" : "ListItem", "item" : { "@type" : "Question", "acceptedAnswer" : { "@type" : "Answer", "text" : "Thiazide diuretic — In uncomplicated stage 1 hypertension thiazides are first-line per the article's review." }, "name" : "A 62-year-old Black woman with average office BP 152/92 mm Hg: which initial therapy is best?" }, "position" : 1 }, { "@type" : "ListItem", "item" : { "@type" : "Question", "acceptedAnswer" : { "@type" : "Answer", "text" : "ACE inhibitor monotherapy — The article notes ACE inhibitors are preferred in CKD with albuminuria; thiazides lose efficacy at low eGFR and ACE-I offers renal benefit." }, "name" : "A 48-year-old man with CKD stage 3 and BP 148/88 mm Hg: which is optimal?" }, "position" : 2 }, { "@type" : "ListItem", "item" : { "@type" : "Question", "acceptedAnswer" : { "@type" : "Answer", "text" : "Thiazide diuretic + calcium channel blocker — The article states stage 2 hypertension (≥160/100 mm Hg) warrants initial dual therapy per ACC/AHA 2017 guidance." }, "name" : "A 70-year-old man with BP 165/95 mm Hg and no comorbidities: best initial choice?" }, "position" : 3 }, { "@type" : "ListItem", "item" : { "@type" : "Question", "acceptedAnswer" : { "@type" : "Answer", "text" : "Calcium channel blocker monotherapy — The article highlights CCBs as particularly effective for isolated systolic hypertension in older patients." }, "name" : "A 54-year-old woman with isolated systolic HTN 158/82 mm Hg: first-line agent?" }, "position" : 4 }, { "@type" : "ListItem", "item" : { "@type" : "Question", "acceptedAnswer" : { "@type" : "Answer", "text" : "ACE inhibitor monotherapy — The article notes ACE inhibitors avoid exacerbating hyperuricemia; thiazides can worsen gout and are less desirable here." }, "name" : "A 45-year-old non-Black man with BP 142/86 mm Hg and a history of gout: best initial therapy?" }, "position" : 5 } ], "name" : "Practice Questions", "numberOfItems" : 5 } ```