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Updated: Jun 7, 2026

A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis
Published on: June 2, 2015
[When D-dimers within normal limits do not equate to normal D-dimers]
L Garchery1, S Motamed, J-M Gaspoz
1Service de médecine de premier recours, Département de médecine communautaire et de premier recours HUG, 1211 Genève 14. Lucile.Garchery@hcuge.ch
Abstract:
Pulmonary embolism is a difficult diagnosis that may be missed because of an aspecific clinical presentation. Being the most accurate to confirm or exclude the disease is a matter of concern, as effective treatment exists and a possibly fatal outcome without it. Scores and guidelines can help us. However, they cannot replace clinical sense. What are the options when laboratory results put us on the wrong track, such as in a patient with a clinical presentation suggestive of a pulmonary embolism, but whose D-dimers are within the normal range?
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Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above the...
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