The type of shock presented by a patient with a known history of gastric ulcers and gastrointestinal bleeding with recent history of passing a lot of blood is called hypovolemic shock. The patient is now on the later stages of shock as he is tachycardic and hypotensive (significant as mechanisms to maintain a normal blood pressure is failing at this point).
A

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Answer:
Option D, both A and B
Explanation:
The potential difference is created across a battery (between its two terminal –one positive and the other one negative) when work is done to move a charge from one point to another. This potential difference is measured in volts. 1 volt is the potential difference between two points when one joule of potential energy is spent to move a charge of one coulomb from one point to the other.
Voltage drop across a circuit is the amount of electric current lost due to resistance/ impedance with in the cables of the circuit.
Hence, both potential difference and voltage drop occurs across the circuit,
Option D is correct.
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