How does a scientific theory differ from a hypothesis?

Which initial physical assessment finding would the nurse expect to be present in a patient with acute left-sided HF?

A patient reports “feels like my heart is pounding” and shortness of breath. During cardiac monitoring in the emergency department (ED), the nurse obtains the following electrocardiographic (ECG) tracing.The nurse interprets this heart rhythm as: 

What mechanism causes BNP to rise?

Nana has been having some chest pain when climbing her stairs. It goes away when she rests. What is the MOST LIKELY cause of this?

Your patient has chronic heart failure. Which of the following are appropriate questions that relate to their management of THIS disease? Select all that apply.

Administer Versed 0.05 mg/kg/hr. Patient weighs 40 kg. Available is Versed 10 mg in 100 ml NS.How many ml/hr will the nurse administer?

After the nurse gives IV atropine to a patient with symptomatic sinus bradycardia,  which finding indicates that the medication has been effective?

What does 1000 BP means?

What role did climate play in the collapse of the Mayan civilization?