Master AACN CCRN-Adult Exam with Reliable Practice Questions

Correct : A

Hypoxia-induced cerebral edema after a near-drowning incident can be managed by administering osmotic diuretics like mannitol. These medications help reduce intracranial pressure by drawing fluid out of the brain tissue and into the bloodstream, thereby alleviating cerebral edema. Maintaining a MAP of 60-70 mm Hg may not be sufficient to address the elevated intracranial pressure, keeping the patient flat could worsen cerebral edema, and hyperventilation with a PaCO2 of 40-45 mm Hg is not typically recommended for managing increased intracranial pressure as it can lead to vasoconstriction and decreased cerebral perfusion. Reference: = CCRN Exam Handbook, AACN Adult CCRN Certification Review Course

Correct : B

The hemodynamic readings provided (BP 80/60, HR 110, CVP 20 mm Hg, PAOP 26 mm Hg, CO 2.1 L/min, CI 1.3 L/min/m, PAP 42/32 mm Hg, SVR 1762 dynes/sec/cm) suggest cardiogenic shock. This condition is characterized by low cardiac output and index, elevated filling pressures (CVP and PAOP), and systemic vascular resistance. Cardiogenic shock often occurs following an acute anterior wall myocardial infarction (MI) due to extensive damage to the myocardium, leading to impaired contractility and inadequate tissue perfusion. Reference: = CCRN Exam Handbook, page 12

Correct : D

The dysrhythmia shown in the image is likely a rapid ventricular tachycardia (VT), given the hemodynamic instability (BP 83/40, patient pale, diaphoretic, lethargic, and disoriented). Synchronized cardioversion at 100 joules is the appropriate treatment for unstable VT, as it can effectively terminate the arrhythmia and restore normal sinus rhythm, addressing both the dysrhythmia and the patient's symptoms. Reference: = CCRN Exam Handbook, page 33

Correct : C

Pulmonary contusion leads to damage to lung parenchyma, resulting in alveolar hemorrhage and edema. This causes increased airway resistance and decreased gas diffusion due to the inflammatory response and accumulation of fluid within the alveoli, impairing effective gas exchange and reducing lung compliance. Reference: = CCRN Exam Handbook, page 40

Correct : A

After gastric bypass surgery, the altered anatomy of the gastrointestinal tract makes it challenging to place a gastric tube. Performing the procedure under fluoroscopy provides real-time imaging guidance, ensuring correct placement and reducing the risk of complications, such as perforation or misplacement. Reference: = CCRN Exam Handbook, page 45