A nurse who is mentoring a graduate nurse explains the correlation between severe blood loss and the effect on the client's mean arterial pressure (MAI The graduate nurse demonstrates correct understanding when he states which of the following:

It raises cardiac output and MAP.

It causes vasoconstriction and increased MAP.

There is no direct correlation to MAP.

Lower blood volume lowers MAP.

Answer and Explanation

The Correct Answer is D

A.   Severe blood loss actually decreases blood volume, which leads to decreased cardiac output and ultimately lower MAP.
B.   While it's true that the body initially responds to blood loss by vasoconstricting to maintain blood pressure, this compensatory mechanism can only last for so long. As blood loss continues, MAP will decrease.
C.   There is no direct correlation to MAP. MAP is directly influenced by cardiac output and systemic vascular resistance (SVR). Blood volume is a major determinant of both.
D.   A decrease in blood volume leads to decreased preload, which reduces cardiac output. This, in turn, lowers MAP.

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Correct Answer is B

Explanation

A. If there is no change in muscle strength after the Tensilon test, it indicates a negative result for myasthenia gravis.
B. Muscle contractions become progressively stronger is a positive result for myasthenia gravis. Tensilon temporarily improves muscle strength in patients with this condition.
C. Electrical charge in a muscle increases in intensity is not a relevant parameter for the Tensilon test.
D. A pill-rolling tremor appears is a symptom of Parkinson's disease, not myasthenia gravis.

A. "DIC is controllable with lifelong heparin usage." B. "DIC is characterized by an elevated platelet count." C. "DIC is a genetic disorder involving a vitamin K deficiency." D. "DIC is caused by abnormal coagulation involving fibrinogen."

Correct Answer is D

Explanation

A. Heparin can be used to manage DIC but it's not a lifelong treatment and is part of a complex management plan.
B. DIC actually leads to a decreased platelet count due to excessive clotting.
C. DIC is an acquired condition, not a genetic one, and while vitamin K is involved in clotting, it's not the primary cause of DIC.
D. DIC is a complex disorder involving uncontrolled clotting and bleeding due to the depletion of clotting factors, including fibrinogen.

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A nurse who is mentoring a graduate nurse explains the correlation between severe blood loss and the effect on the client's mean arterial pressure (MAI The graduate nurse demonstrates correct understanding when he states which of the following:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who has a suspected diagnosis of myasthenia gravis. The provider prescribes a Tensilon test. Which of the following findings indicates a positive test?

Correct Answer is B

Explanation

A nurse is teaching a client who has septic shock about the development of disseminated intravascular coagulation (DIC). Which of the following statements should the nurse make?

Correct Answer is D

Explanation

A client arrives to the emergency department by ambulance. The client has a possible traumatic brain injury after a fall from a roof. Which of the following assessment findings will the triage nurse report to the provider immediately?

The emergency department nurse is preparing an infusion of IV alteplase for a client who suffered a cerebrovascular accident (CVA). Which of the following statements is accurate about the administration of alteplase?

A nurse suspects a client who has myasthenia gravis is experiencing a myasthenic crisis. Which of the following actions should the nurse take?

A nurse is assessing a client who has disseminated intravascular coagulation (DIC). Which of the following findings should the nurse expect?

A nurse is monitoring a client who is on telemetry. Which of the following findings on the ECG strip should the nurse recognize as normal sinus rhythm?

A nurse is caring for a client who is experiencing anaphylactic shock in response to the administration of penicillin. Which of the following medications should the nurse administer first?

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 findings as an indication of hypovolemic shock?