Which of the following condition should not considered if JVP rises on deep inspiration? ?-?
**Core Concept**
The Jugular Venous Pressure (JVP) is a measure of the pressure within the superior and inferior vena cava, reflecting right atrial pressure. During deep inspiration, the negative intrathoracic pressure increases, which can affect the JVP. This phenomenon is known as the "Kussmaul sign" or " inspiratory Kussmaul's sign".
**Why the Correct Answer is Right**
A rising JVP on deep inspiration can indicate conditions that are associated with increased pressure within the right heart or vena cava. This includes conditions such as cardiac tamponade, constrictive pericarditis, and severe right ventricular dysfunction. The increased pressure within the right heart or vena cava can lead to a decrease in the negative intrathoracic pressure effect on the JVP during inspiration, resulting in a rise in JVP.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because conditions such as tricuspid regurgitation can exhibit a normal or even a decrease in JVP on inspiration due to the increased volume of blood in the right atrium.
**Option B:** This option is incorrect because conditions such as severe asthma or COPD can exhibit a rise in JVP on inspiration due to the increased intrathoracic pressure.
**Option C:** This option is incorrect because conditions such as pulmonary embolism can exhibit a rise in JVP on inspiration due to the increased pressure within the pulmonary circulation.
**Clinical Pearl / High-Yield Fact**
The Kussmaul sign can be a useful clinical finding in diagnosing conditions that increase right heart pressure. However, it is essential to consider other clinical signs and symptoms, such as jugular venous distension and a palpable liver, to support the diagnosis.
**Correct Answer: C. Pulmonary embolism**