What is an abnormal Penile Brachial Index?

Which of the following is the best definition of sensitivity?

The ureter is usually involved in most perinephric fluid collections except:

In vascular testing, what is typically considered to be the gold standard?

What is the major difference between primary and secondary varicose veins?

Which of the following criteria describes this post renal transplant biopsy complication?  

Low resistive “tardus parvus” Doppler spectral waveforms recorded throughout the renal medulla and cortex would suggest which of the following?

If a patient is symptomatic for DVT and you find thrombus of uncertain age, the  thrombus should be considered to be:

Which of the following vessels can be seen posterior to the IVC?

Which is not a symptom of venous insufficiency?