WBR1013
| Author | [[PageAuthor::Rim Halaby, M.D. [1]]] |
|---|---|
| Exam Type | ExamType::USMLE Step 1 |
| Main Category | MainCategory::Physiology |
| Sub Category | SubCategory::Cardiology |
| Prompt | [[Prompt::Cardiovascular parameters are collected from the charts of hospitalized patients with different medical conditions for a retrospective study. One of the patients has the following parameters: Systolic blood pressure: 160 mmHg Which of the following medical conditions is possibly present in this patient?]] |
| Answer A | AnswerA::Aortic stenosis |
| Answer A Explanation | [[AnswerAExp::Aortic stenosis is characterized by a decreased pulse pressure.]] |
| Answer B | AnswerB::Cardiac tamponade |
| Answer B Explanation | [[AnswerBExp::Cardiac tamponade is characterized by a decreased pulse pressure.]] |
| Answer C | AnswerC::Heart failure |
| Answer C Explanation | [[AnswerCExp::Progressed heart failure is characterized by a decreased pulse pressure.]] |
| Answer D | AnswerD::Cardiogenic shock |
| Answer D Explanation | [[AnswerDExp::Cardiogenic shock is characterized by a decreased pulse pressure.]] |
| Answer E | AnswerE::Hyperthyroidism |
| Answer E Explanation | [[AnswerEExp::Hyperthyroidism is characterized by an elevated pulse pressure.]] |
| Right Answer | RightAnswer::E |
| Explanation | [[Explanation::The pulse pressure of this patient is:
Pulse pressure= systolic blood pressure - diastolic blood pressure= 160 - 60= 100 mmHg Educational objective: Pulse pressure is elevated can be elevated in hyperthyroidism, aortic regurgitation and obstructive sleep apnea; while it can be low in aortic stenosis, cardiac tamponade, progressed heart failure and cardiogenic shock. Reference:
First aid for USMLE step 1, 2014. Page 266. |
| Approved | Approved::No |
| Keyword | WBRKeyword::Pulse pressure, WBRKeyword::hyperthyroidism |
| Linked Question | Linked:: |
| Order in Linked Questions | LinkedOrder:: |