A nurse in the emergency department is assessing a client who has internal injuries from a car crash. The client is disoriented to time and place, diaphoretic, and his lips are cyanotic. The nurse should anticipate which of the following findings as an indication of hypovolemic shock?
Widening pulse pressure
Increased heart rate
Increased deep tendon reflexes
Pulse oximetry 96%
The Correct Answer is B
Choice A Reason: This is incorrect. Widening pulse pressure is not a sign of hypovolemic shock, but rather of increased intracranial pressure or aortic regurgitation. Hypovolemic shock causes narrowing pulse pressure due to decreased stroke volume and increased peripheral resistance.
Choice B Reason: This is correct. Increased heart rate is a sign of hypovolemic shock, as the body tries to compensate for the decreased blood volume and cardiac output by increasing the heart rate and contractility.
Choice C Reason: This is incorrect. Increased deep tendon reflexes are not a sign of hypovolemic shock, but rather of hyperreflexia or tetany. Hypovolemic shock causes decreased deep tendon reflexes due to reduced perfusion and oxygenation of the muscles and nerves.
Choice D Reason: This is incorrect. Pulse oximetry 96% is not a sign of hypovolemic shock, but rather of normal oxygen saturation. Hypovolemic shock causes decreased pulse oximetry due to hypoxia and impaired gas exchange.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","D","E"]
Explanation
Choice a) is correct because copies of insurance cards can help clients access medical care and claim compensation in case of a disaster. Insurance cards can also serve as a form of identification if other documents are lost or damaged.
Choice b) is correct because a whistle can help clients signal for help or locate each other in case of an emergency. A whistle can also deter potential atackers or wild animals.
Choice c) is incorrect because antibiotics are not recommended to be included in a disaster readiness supply kit or “go bag”. Antibiotics are prescription drugs that should only be used under the guidance of a health care provider. Using antibiotics without proper indication, dosage, or duration can cause adverse effects, such as allergic reactions, resistance, or superinfection.
Choice d) is correct because household bleach can be used to disinfect water, surfaces, or wounds in case of a disaster. Household bleach can also be used to create chlorine gas, which can be used as a weapon or a deterrent.
Choice e) is correct because pencil and paper can be used to write down important information, such as contact numbers, medical history, or evacuation plans. Pencil and paper can also be used to communicate with others, especially if there is no access to phone or internet services.
Correct Answer is D
Explanation
Choice A Reason: This is incorrect because magnesium is not a medication for symptomatic bradycardia. Magnesium is a mineral that regulates muscle and nerve function, blood pressure, and blood sugar levels. Magnesium can be used to treat conditions such as torsades de pointes, eclampsia, or hypomagnesemia.
Choice B Reason: This is incorrect because sodium bicarbonate is not a medication for symptomatic bradycardia. Sodium bicarbonate is a substance that neutralizes acids and bases and regulates the pH of the blood. Sodium bicarbonate can be used to treat conditions such as metabolic acidosis, cardiac arrest, or overdose of certain drugs.
Choice C Reason: This is incorrect because epinephrine is not a medication for symptomatic bradycardia. Epinephrine is a hormone that activates the sympathetic nervous system and increases the heart rate, blood pressure, and blood flow to the muscles and brain. Epinephrine can be used to treat conditions such as anaphylaxis, cardiac arrest, or severe asthma.
Choice D Reason: This is correct because atropine is a medication for symptomatic bradycardia. Atropine blocks the action of the parasympathetic nervous system and increases the heart rate and conduction. Atropine is a medication that blocks the action of the parasympathetic nervous system and increases the heart rate and conduction.
Symptomatic bradycardia is a condition where the heart rate is slower than normal and causes symptoms such as dizziness, fatigue, chest pain, or fainting. Atropine can be used to treat symptomatic bradycardia by stimulating the sinoatrial node and the atrioventricular node, which are the natural pacemakers of the heart.
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