BADNAP NP4 Final Exam
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Free BADNAP NP4 Final Exam Questions
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Lightheadedness when standing up
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Weak quadriceps muscles
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Tingling of the extremities and tetany
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Decreased deep tendon reflexes
Explanation
Correct Answer: (C) Tingling of the extremities and tetany.
The calcium level of 4.5 mg/dL is critically low, well below the normal range of 8.5 to 10.5 mg/dL, indicating severe hypocalcemia. The sodium and potassium values are within normal limits. Hypocalcemia causes increased neuromuscular excitability resulting in paresthesias such as tingling and numbness of the extremities, muscle cramps, and tetany, which is characterized by involuntary sustained muscle contractions. Trousseau's sign and Chvostek's sign are classic clinical indicators of hypocalcemic tetany.
Why Other Options are Incorrect:
A. Lightheadedness when standing up, or orthostatic hypotension, is not a specific manifestation of hypocalcemia and is more commonly associated with dehydration, antihypertensive medications, or autonomic dysfunction.
B. Weak quadriceps muscles is more characteristic of hypokalemia or neuromuscular conditions, not hypocalcemia, which causes increased rather than decreased neuromuscular excitability.
D. Decreased deep tendon reflexes is a sign of hypercalcemia or hypermagnesemia, where excess calcium or magnesium depresses neuromuscular function. Hypocalcemia causes the opposite effect, producing hyperreflexia and increased neuromuscular excitability.
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State Practice Act.
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ANA Code of Ethics.
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National League of Nursing.
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Policy and Procedure of the individual facility.
Explanation
Correct Answer: (A) State Practice Act.
The State Practice Act defines the legal scope of practice for registered nurses within each state and establishes the minimum standards by which an RN must practice. It is the foundational legal document that governs what procedures and medications an RN is legally permitted to perform or administer, including medications used in rapid sequence intubation.
Why Other Options are Incorrect:
B. The ANA Code of Ethics provides ethical guidelines and professional values for nursing practice but does not define the legal boundaries of what an RN is permitted to do clinically.
C. The National League of Nursing focuses on nursing education standards and does not govern clinical scope of practice for licensed nurses.
D. Individual facility policies and procedures may expand or further define practice within an institution, but they cannot supersede or replace the minimum legal standards established by the State Practice Act. The State Practice Act sets the floor upon which facility policies are built.
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Prepare to administer IV antihypertensives.
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Prepare to administer recombinant tissue plasminogen activator (r-tPA).
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Place the patient on 2L oxygen via nasal cannula.
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Send the client to a STAT non-contrast computed tomography (CT) of the head.
Explanation
Correct Answer: (D) Send the client to a STAT non-contrast computed tomography (CT) of the head.
The client is presenting with classic stroke symptoms within the 30-minute window. Before any treatment can be initiated, a non-contrast CT of the head must be performed to differentiate between ischemic and hemorrhagic stroke, as r-tPA is contraindicated in hemorrhagic stroke. The CT scan is the absolute priority before any other intervention.
Why Other Options are Incorrect:
A. Administering IV antihypertensives is not the priority because blood pressure is often intentionally maintained at higher levels during an acute stroke to preserve cerebral perfusion pressure.
B. Administering r-tPA cannot be done until hemorrhagic stroke has been ruled out by CT imaging, making this a subsequent action rather than the priority.
C. Placing the patient on oxygen is supportive care but is not the priority action when a stroke is suspected and diagnostic imaging is urgently needed.
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Give IV chlorpromazine.
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Administer rectal acetaminophen.
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Insert indwelling urinary catheter.
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Infuse chilled NS IV.
Explanation
Correct Answer: (D) Infuse chilled NS IV.
The clinical presentation is consistent with heat stroke, a life-threatening emergency characterized by a temperature of 105.4°F, unresponsiveness, hypotension, tachycardia, and tachypnea. The priority intervention is rapid core temperature reduction. Infusing chilled normal saline intravenously achieves both internal cooling and fluid resuscitation to address the hypotension caused by severe dehydration and vasodilation, making it the most urgent and effective immediate intervention.
Why Other Options are Incorrect:
A. Chlorpromazine is an antipsychotic that has been used in some settings to prevent shivering during cooling but is not the priority first intervention and carries risks of further hypotension in an already hypotensive client.
B. Rectal acetaminophen is used to reduce fever in infection-related hyperthermia but is not effective in heat stroke, where the temperature elevation is due to failure of thermoregulation, not a pyrogen-driven febrile response.
C. Inserting an indwelling urinary catheter to monitor urine output is important for ongoing assessment but is not the priority life-saving intervention. Cooling and fluid resuscitation must be initiated first.
Possible Answers: Unilateral pulmonary infiltrates on chest x-ray Refractory hypoxemia WBC > 11,000 Acute progressive respiratory failure Elevated serum lactate
- Unilateral pulmonary infiltrates on chest x-ray
- Refractory hypoxemia
- WBC > 11,000
- Acute progressive respiratory failure
- Elevated serum lactate
Explanation
Correct Answer: (B) Refractory hypoxemia and (D) Acute progressive respiratory failure.
ARDS is diagnosed using the Berlin Definition, which requires bilateral pulmonary infiltrates on chest x-ray, refractory hypoxemia (PaO2/FiO2 ratio ≤ 300), and respiratory failure not fully explained by cardiac failure. Refractory hypoxemia and acute progressive respiratory failure are the two hallmark diagnostic criteria among the options provided.
Why Other Options are Incorrect:
Unilateral pulmonary infiltrates on chest x-ray: ARDS requires bilateral infiltrates, not unilateral, on chest imaging.
WBC > 11,000: This is a marker of infection or inflammation but is not a diagnostic criterion for ARDS.
Elevated serum lactate: This indicates tissue hypoperfusion and is associated with sepsis or shock, but it is not a required diagnostic criterion for ARDS.
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The client has purposeful movement when the nurse rubs the sternum.
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The client exhibits extension and abduction of arms in response to painful stimuli.
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The client withdraws from painful stimuli.
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The client is able to squeeze the nurse's hand on a verbal request.
Explanation
Correct Answer: (B) The client exhibits extension and abduction of arms in response to painful stimuli.
The client was initially in decorticate posturing, which involves flexion of the arms toward the core. A change to decerebrate posturing, characterized by extension and abduction of the arms in response to painful stimuli, represents neurological deterioration and indicates damage has progressed from the cortex to the brainstem. This is a critical sign of worsening brain herniation and requires immediate intervention.
Why Other Options are Incorrect:
A. Purposeful movement in response to sternal rub represents an improvement in neurological status from the baseline of being unresponsive, not a deterioration requiring urgent intervention.
C. Withdrawing from painful stimuli indicates a localized response to pain, which is a better neurological response than the baseline of decorticate posturing, representing improvement rather than deterioration.
D. The ability to squeeze the nurse's hand on verbal request represents a significant improvement in responsiveness and purposeful motor function from the baseline, indicating neurological recovery rather than deterioration.
Possible Answers: Electrolyte imbalance / Cardiac tamponade / COPD / Tension pneumothorax / DKA / Atrial fibrillation
- Electrolyte imbalance
- Cardiac tamponade
- COPD
- Tension pneumothorax
- DKA
- Atrial fibrillation
Explanation
Correct Answer: Electrolyte imbalance, Cardiac tamponade, and Tension pneumothorax.
PEA is a cardiac arrest rhythm where organized electrical activity is present on the monitor but there is no effective mechanical cardiac output or palpable pulse. The ACLS algorithm uses the Hs and Ts framework to identify and treat reversible causes of PEA.
Electrolyte imbalance, particularly severe hyperkalemia or hypokalemia, disrupts cardiac membrane potential and conduction, leading to electrical-mechanical dissociation. Cardiac tamponade compresses the heart externally, preventing effective ventricular filling and contraction despite normal electrical activity. Tension pneumothorax causes mediastinal shift that compresses the heart and great vessels, severely reducing cardiac output while electrical activity continues.
Why Other Options are Incorrect:
COPD is a chronic lung disease that can contribute to respiratory failure and hypoxia but is not listed among the specific reversible causes of PEA in the ACLS Hs and Ts framework.
DKA causes metabolic acidosis and electrolyte disturbances that can contribute to cardiac dysfunction, but DKA itself is not a direct listed cause of PEA in the ACLS algorithm. Hypovolemia and hydrogen ion excess from acidosis are the relevant ACLS categories that may encompass DKA effects.
Atrial fibrillation is a cardiac dysrhythmia characterized by chaotic atrial activity with an irregular ventricular response, but it is a perfusing rhythm with cardiac output and is not a cause of PEA.
- Conduct a neurological assessment for possible head trauma.
- Ask the client when he last had any alcohol intake.
- Call the physician to notify of the client's symptoms.
- Discharge the client per physician orders.
- Initiate a transfer to a medical detox unit.
Explanation
Correct Answer: (A) Conduct a neurological assessment for possible head trauma, (B) Ask the client when he last had any alcohol intake, and (C) Call the physician to notify of the client's symptoms.
The new onset of irritability, headache, elevated blood pressure and pulse, and fine tremors in a client who was neurologically intact on admission requires immediate clinical reassessment. A neurological assessment must be performed to evaluate for complications of head trauma such as subdural hematoma, as these findings could represent evolving intracranial pathology. The combination of tremors, irritability, elevated vital signs, and new neurological changes also raises clinical suspicion for alcohol withdrawal syndrome, which can progress to life-threatening delirium tremens. Asking about last alcohol intake is essential to determine withdrawal risk and timeline. The physician must be notified of all new symptoms before any discharge decisions are made.
Why Other Options are Incorrect:
D. Discharging the client with new and unexplained neurological symptoms and signs of possible withdrawal is unsafe and premature. The physician must be notified and the client reassessed before discharge can proceed.
E. Initiating a transfer to a medical detox unit is premature at this stage. The nurse must first complete the assessment, notify the physician, and receive new orders before any transfer is arranged.
Possible Answers: Peripheral edema / Crackles / Hepatomegaly / Shortness of breath / Jugular vein distention
Explanation:
Correct Answer: Peripheral edema, Hepatomegaly, and Jugular vein distention.
Right-sided heart failure results in the inability of the right ventricle to pump blood forward into the pulmonary circulation, causing blood to back up into the systemic venous circulation. Peripheral edema develops in the dependent areas such as the ankles and legs due to increased venous hydrostatic pressure forcing fluid into the interstitial spaces. Hepatomegaly occurs because venous congestion backs up into the portal circulation, causing the liver to engorge with blood. Jugular vein distention results from elevated central venous pressure and is a classic visible sign of right-sided venous congestion.
Why Other Options are Incorrect:
Crackles are a manifestation of left-sided heart failure where pulmonary congestion causes fluid to accumulate in the alveoli, producing the crackling sound on auscultation. Right-sided failure does not directly cause pulmonary fluid accumulation.
Shortness of breath is primarily a symptom of left-sided heart failure resulting from pulmonary congestion and reduced oxygenation. While severe right-sided failure can eventually contribute to dyspnea, it is not a hallmark presenting symptom of right-sided heart failure and is more characteristic of left-sided failure.
- Peripheral edema
- Crackles
- Hepatomegaly
- Shortness of breath
- Jugular vein distention
Explanation
Correct Answer: Peripheral edema, Hepatomegaly, and Jugular vein distention.
Right-sided heart failure results in the inability of the right ventricle to pump blood forward into the pulmonary circulation, causing blood to back up into the systemic venous circulation. Peripheral edema develops in the dependent areas such as the ankles and legs due to increased venous hydrostatic pressure forcing fluid into the interstitial spaces. Hepatomegaly occurs because venous congestion backs up into the portal circulation, causing the liver to engorge with blood. Jugular vein distention results from elevated central venous pressure and is a classic visible sign of right-sided venous congestion.
Why Other Options are Incorrect:
Crackles are a manifestation of left-sided heart failure where pulmonary congestion causes fluid to accumulate in the alveoli, producing the crackling sound on auscultation. Right-sided failure does not directly cause pulmonary fluid accumulation.
Shortness of breath is primarily a symptom of left-sided heart failure resulting from pulmonary congestion and reduced oxygenation. While severe right-sided failure can eventually contribute to dyspnea, it is not a hallmark presenting symptom of right-sided heart failure and is more characteristic of left-sided failure.
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Administer intravenous pain medication.
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Initiate IV fluids through the catheter.
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Apply nonsterile dressing until placement is verified.
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Have a chest x-ray performed at the bedside.
Explanation
Correct Answer: (D) Have a chest x-ray performed at the bedside.
After placement of a subclavian central line, the absolute priority is to confirm correct catheter tip placement and rule out complications such as pneumothorax or hemothorax through a bedside chest x-ray. The catheter tip must be verified to be in the superior vena cava before any fluids or medications are administered through the line to prevent life-threatening complications from malpositioned infusions.
Why Other Options are Incorrect:
A. Administering intravenous pain medication through an unverified central line is unsafe and must not be done until placement is confirmed by chest x-ray, as malposition could result in medication being delivered outside the vascular system.
B. Initiating IV fluids through the catheter before radiographic confirmation of placement is dangerous, as fluids could be infused into the pleural space or mediastinum if the catheter is malpositioned.
C. Applying a nonsterile dressing is inappropriate as central line dressings must be sterile to prevent catheter-associated bloodstream infections. Additionally, dressing application should follow placement verification, not precede it.
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