Answer and Explanation 20

20.  C is the correct answer.  HSP usually presents with a fever, abdominal pain, and arthralgias usually in pediatric patients.  Minimal change disease and idiopathic thrombocytopenia typically does not present with a fever.  Post streptococcal glomerulonephritis does not produce a rash such as this.

Question 20

20.  Your patient is a 11 year old male who presents with abdominal pain, arthralgias, proteinuria, hematuria, and RBC casts.  He also has the rash seen below?  What is the likely diagnosis?

A.  Post Streptococcal Glomerulonephritis

B.  Minimal Change Disease

C.  Henoch Schonlein Purpura

D.  Idiopathic Thrombocytopenia

Answer and Explanation 19

19.  B is the correct answer.  There are no specific treatments for primary amyloidosis.  Prednisone, colchicine has been used but are not efficacious.  Renal biopsy is often needed to make the diagnosis.  Amyloidosis is characterized by the fibrillar deposits and their composition.  The four types are primary, secondary, hereditary, and dialysis associated amyloidosis.

Question 19

19.  Which of the following is not true regarding systemic amyloidosis?

A.  Renal insufficiency is present in approximately 50% of the patients and the most common cause of death is heart failure with a median survival of 4 months.

B.  Patients usually have a good response to prednisone

C.  Amyloidosis is characterized by the fibrillar deposits and their composition

D.  Diagnosis often has to be made by renal biopsy

Answer and Explanation 18

18.  The correct answer is B.  FGS has normal complement levels.  Heavy proteinuria, asymptomatic hematuria, and edema are present at the time of diagnosis.  40 percent of patients with kidney transplant can have relapses of FCS.  Two thirds of the patients with FGS can progress to chronic renal failure.

Question 18

18.  Which of the following is not a characteristic of Focal Glomerulosclerosis (FGS)?

A.  Heavy proteinuria, asymptomatic hematuria, and edema are present at the time of diagnosis

B.  Complement levels are usually elevated

C.  Approximately one third of patients respond to corticosteroid therapy, but 60-70% can progress to chronic renal failure

D.  Patients with kidney transplants can have reoccurrence

Answer and Explanation 17

17.  C is the correct answer.  The natural diagnostic trap is to fall in to considering the most common things.  Kidney stones are certainly more common.  Remember you can have an AAA dissect into the renal artery and kidney causing hematuria.  Polycystic kidney disease does not have this appearance in the kidney or vasculature.