← Back to Session

Time Completed: 02:32:05

Final Score 37%

67
113

Questions

  • Q1. ✓ Correct
  • Q2. ✓ Correct
  • Q3. X Incorrect
  • Q4. X Incorrect
  • Q5. X Incorrect
  • Q6. X Incorrect
  • Q7. ✓ Correct
  • Q8. ✓ Correct
  • Q9. ✓ Correct
  • Q10. ✓ Correct
  • Q11. X Incorrect
  • Q12. X Incorrect
  • Q13. X Incorrect
  • Q14. ✓ Correct
  • Q15. X Incorrect
  • Q16. X Incorrect
  • Q17. X Incorrect
  • Q18. X Incorrect
  • Q19. X Incorrect
  • Q20. X Incorrect
  • Q21. X Incorrect
  • Q22. X Incorrect
  • Q23. X Incorrect
  • Q24. ✓ Correct
  • Q25. X Incorrect
  • Q26. X Incorrect
  • Q27. ✓ Correct
  • Q28. ✓ Correct
  • Q29. ✓ Correct
  • Q30. X Incorrect
  • Q31. ✓ Correct
  • Q32. ✓ Correct
  • Q33. X Incorrect
  • Q34. X Incorrect
  • Q35. X Incorrect
  • Q36. X Incorrect
  • Q37. ✓ Correct
  • Q38. X Incorrect
  • Q39. ✓ Correct
  • Q40. X Incorrect
  • Q41. ✓ Correct
  • Q42. X Incorrect
  • Q43. ✓ Correct
  • Q44. X Incorrect
  • Q45. ✓ Correct
  • Q46. ✓ Correct
  • Q47. ✓ Correct
  • Q48. X Incorrect
  • Q49. X Incorrect
  • Q50. X Incorrect
  • Q51. X Incorrect
  • Q52. X Incorrect
  • Q53. ✓ Correct
  • Q54. ✓ Correct
  • Q55. X Incorrect
  • Q56. X Incorrect
  • Q57. ✓ Correct
  • Q58. X Incorrect
  • Q59. X Incorrect
  • Q60. X Incorrect
  • Q61. X Incorrect
  • Q62. X Incorrect
  • Q63. X Incorrect
  • Q64. ✓ Correct
  • Q65. ✓ Correct
  • Q66. ✓ Correct
  • Q67. ✓ Correct
  • Q68. ✓ Correct
  • Q69. X Incorrect
  • Q70. ✓ Correct
  • Q71. X Incorrect
  • Q72. ✓ Correct
  • Q73. X Incorrect
  • Q74. X Incorrect
  • Q75. X Incorrect
  • Q76. X Incorrect
  • Q77. X Incorrect
  • Q78. X Incorrect
  • Q79. X Incorrect
  • Q80. X Incorrect
  • Q81. X Incorrect
  • Q82. X Incorrect
  • Q83. X Incorrect
  • Q84. ✓ Correct
  • Q85. X Incorrect
  • Q86. ✓ Correct
  • Q87. X Incorrect
  • Q88. ✓ Correct
  • Q89. ✓ Correct
  • Q90. ✓ Correct
  • Q91. ✓ Correct
  • Q92. X Incorrect
  • Q93. ✓ Correct
  • Q94. X Incorrect
  • Q95. ✓ Correct
  • Q96. X Incorrect
  • Q97. ✓ Correct
  • Q98. X Incorrect
  • Q99. X Incorrect
  • Q100. ✓ Correct
  • Q101. ✓ Correct
  • Q102. X Incorrect
  • Q103. X Incorrect
  • Q104. ✓ Correct
  • Q105. ✓ Correct
  • Q106. X Incorrect
  • Q107. X Incorrect
  • Q108. ✓ Correct
  • Q109. X Incorrect
  • Q110. X Incorrect
  • Q111. X Incorrect
  • Q112. X Incorrect
  • Q113. X Incorrect
  • Q114. ✓ Correct
  • Q115. ✓ Correct
  • Q116. ✓ Correct
  • Q117. X Incorrect
  • Q118. X Incorrect
  • Q119. X Incorrect
  • Q120. ✓ Correct
  • Q121. ✓ Correct
  • Q122. X Incorrect
  • Q123. ✓ Correct
  • Q124. X Incorrect
  • Q125. X Incorrect
  • Q126. X Incorrect
  • Q127. ✓ Correct
  • Q128. ✓ Correct
  • Q129. X Incorrect
  • Q130. X Incorrect
  • Q131. X Incorrect
  • Q132. X Incorrect
  • Q133. X Incorrect
  • Q134. X Incorrect
  • Q135. X Incorrect
  • Q136. X Incorrect
  • Q137. X Incorrect
  • Q138. X Incorrect
  • Q139. X Incorrect
  • Q140. X Incorrect
  • Q141. ✓ Correct
  • Q142. ✓ Correct
  • Q143. ✓ Correct
  • Q144. ✓ Correct
  • Q145. ✓ Correct
  • Q146. X Incorrect
  • Q147. X Incorrect
  • Q148. ✓ Correct
  • Q149. X Incorrect
  • Q150. X Incorrect
  • Q151. ✓ Correct
  • Q152. X Incorrect
  • Q153. X Incorrect
  • Q154. X Incorrect
  • Q155. X Incorrect
  • Q156. X Incorrect
  • Q157. ✓ Correct
  • Q158. X Incorrect
  • Q159. X Incorrect
  • Q160. ✓ Correct
  • Q161. ✓ Correct
  • Q162. ✓ Correct
  • Q163. X Incorrect
  • Q164. X Incorrect
  • Q165. X Incorrect
  • Q166. X Incorrect
  • Q167. ✓ Correct
  • Q168. ✓ Correct
  • Q169. X Incorrect
  • Q170. X Incorrect
  • Q171. X Incorrect
  • Q172. X Incorrect
  • Q173. X Incorrect
  • Q174. X Incorrect
  • Q175. X Incorrect
  • Q176. X Incorrect
  • Q177. X Incorrect
  • Q178. X Incorrect
  • Q179. ✓ Correct
  • Q180. ✓ Correct

Anatomy

Thorax

Question 167 of 180

A 50 year old man presents to ED complaining of a hoarse voice. Imaging shows an aneurysm of the aortic arch. Which of the following structures is likely being compressed:

Answer:

The left recurrent laryngeal nerve passes below and behind the aortic arch before ascending towards the tracheo-oesophageal groove medial to the arch of the aorta. Damage to the recurrent laryngeal nerve will result in a hoarse voice.

Great Vessels

Anatomy / Thorax / Heart and Pericardium

Last Updated: 11th April 2019

The pulmonary trunk and the ascending aorta are contained within the pericardial sac, lined by serous pericardium and within a common sheath.

Ascending Aorta

The ascending aorta arises from the aortic orifice at the base of the left ventricle, at the level of the lower edge of the third left costal cartilage, posterior to the left half of the sternum. The ascending aorta ascends, moving slightly forwards and to the right, before continuing as the arch of the aorta posterior to the second right costal cartilage.

Pulmonary Trunk

The pulmonary trunk arises from the conus arteriosus of the right ventricle slightly anterior to the aortic orifice, posterior to the left third costal cartilage. The pulmonary trunk ascends, moving posteriorly and to the left, lying initially anterior and then to the left of the ascending aorta, before bifurcating into the right and left pulmonary arteries posterior to the left second intercostal space.

By Blausen Medical Communications, Inc. (Donated via OTRS, see ticket for details) [CC BY 3.0 , via Wikimedia Commons

Sectional Anatomy of the Heart. (Image by Blausen Medical Communications, Inc. [CC BY 3.0 , via Wikimedia Commons)

Report A Problem

Is there something wrong with this question? Let us know and we’ll fix it as soon as possible.

Loading Form...

Close
  • Biochemistry
  • Blood Gases
  • Haematology
Biochemistry Normal Value
Sodium 135 – 145 mmol/l
Potassium 3.0 – 4.5 mmol/l
Urea 2.5 – 7.5 mmol/l
Glucose 3.5 – 5.0 mmol/l
Creatinine 35 – 135 μmol/l
Alanine Aminotransferase (ALT) 5 – 35 U/l
Gamma-glutamyl Transferase (GGT) < 65 U/l
Alkaline Phosphatase (ALP) 30 – 135 U/l
Aspartate Aminotransferase (AST) < 40 U/l
Total Protein 60 – 80 g/l
Albumin 35 – 50 g/l
Globulin 2.4 – 3.5 g/dl
Amylase < 70 U/l
Total Bilirubin 3 – 17 μmol/l
Calcium 2.1 – 2.5 mmol/l
Chloride 95 – 105 mmol/l
Phosphate 0.8 – 1.4 mmol/l
Haematology Normal Value
Haemoglobin 11.5 – 16.6 g/dl
White Blood Cells 4.0 – 11.0 x 109/l
Platelets 150 – 450 x 109/l
MCV 80 – 96 fl
MCHC 32 – 36 g/dl
Neutrophils 2.0 – 7.5 x 109/l
Lymphocytes 1.5 – 4.0 x 109/l
Monocytes 0.3 – 1.0 x 109/l
Eosinophils 0.1 – 0.5 x 109/l
Basophils < 0.2 x 109/l
Reticulocytes < 2%
Haematocrit 0.35 – 0.49
Red Cell Distribution Width 11 – 15%
Blood Gases Normal Value
pH 7.35 – 7.45
pO2 11 – 14 kPa
pCO2 4.5 – 6.0 kPa
Base Excess -2 – +2 mmol/l
Bicarbonate 24 – 30 mmol/l
Lactate < 2 mmol/l
©2017 - 2025 MRCEM Success