What is chronic low serum calcium levels associated with?

The mass of a copper block is 25.62 g.  This is an example of a(n) _________.

A young man presents with acute, severe scrotal pain with unilateral enlargement. You  performed an ultrasound exam and noted decreased vascular flow as well as hypoechoic  scrotal parenchyma. This case is most consistent with which of the following?

Which of the following is a correctly written conversion factor for a megasecond?

All descriptions are true for potassium hydroxide.  Mark each physical property of potassium hydroxide. 

This 3 year old patient presented with a palpable left upper quadrant abdominal mass. This image was taken of the left kidney. What is the likely diagnosis?  

The part of the brain that connects the forebrain and the spinal cord is which one of the following?

A 2 month old infant presents with a palpable abdominal mass, lethargy, and weight loss. Sonogram show a heterogenous mass, with internal blood flow, superior and medial to the left kidney. What is the most likely diagnosis?  

How many significant figures are in each of the following numbers?  [ans1]  0.0080800 [ans2]  290 [ans3]  3.00×108 [ans4]  5607 [ans5]  9×10-15 [ans6]  6320.

A diabetic mom had a difficult delivery resulting in a hypoxic newborn. The head US was normal, however, the renal ultrasound showed a hetergenous mass superior to the left kidney. A renal ultrasound was repeated in 6 weeks, the mass had decreased in size and now appeared anechoic. Which is the most likely diagnosis?