Question

The physician orders Dopamine drip to be initiated at 2 mcg/kg/min for a patient with a slow heart rate. The patient weighs 78 kg. Dopamine 400 mg is supplied in 'normal saline. At what rate would the nurse initiate the IV infusion (in mL/hr)? Round to the nearest tenths.

Answer 1

Correct Answers:

5.9

Rationale :

🔶Ordered dose: 2 mcg/kg/min

🔶Patient weight: 78 kg

🔶Available: Dopamine 400 mg in 250 mL NS

🔶Concentration: 400 mg = 400,000 mcg

🔶Formula:

✔️mL/hr=Ordered dose (mcg/kg/min)×Weight (kg)×60/Concentration (mcg/mL)

✔️mL/hr=2×78×60/1600

✔️9360/1600

✔️5.85 mL/hr

✔️5.9 mL/hr

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Answer 2

Correct Answers:

synchronized intermittent mandatory ventilation

Rationale :

🤎 Synchronized intermittent mandatory ventilation (SIMV) provides a preset number of mandatory ventilator breaths while still allowing the patient to breathe spontaneously between those breaths.

🤎 In this situation, the physician wants the ventilator to deliver 10 mandatory breaths/min while permitting additional spontaneous respirations at the patient's own tidal volume, which precisely describes SIMV.

🤎 SIMV synchronizes mandatory breaths with the patient's own inspiratory effort, helping reduce the likelihood that the patient will fight against the ventilator.

🤎 Spontaneous breaths occurring between mandatory breaths are generated primarily by the patient, which promotes continued use of the respiratory muscles.

🤎 SIMV has historically also been used during ventilator weaning because the mandatory respiratory rate can be progressively reduced as spontaneous breathing improves.

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Answer 3

Correct Answers:

Decrease in venous return

Rationale :

🔷Increasing PEEP from 10 to 15 cm H₂O raises intrathoracic pressure and can compress the major thoracic blood vessels.

🔷 Increased intrathoracic pressure decreases the amount of systemic venous blood returning to the right atrium, thereby reducing preload.

🔷Reduced venous return can decrease ventricular filling, stroke volume, and ultimately cardiac output.

🔷A sudden decline in cardiac output after increasing PEEP can therefore produce hypotension, such as the decrease from 120/76 to 90/60 mm Hg described here.

🔷The nurse should recognize hypotension after a PEEP increase as an important sign of hemodynamic compromise from excessive positive intrathoracic pressure.

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Answer 4

Correct Answers:

Suctioning is done as indicated by patient assessment.

Rationale :

🌻 Endotracheal suctioning should be performed only when clinically indicated, rather than automatically according to a rigid schedule.

🌻 Indications include visible or audible secretions, coarse breath sounds, increased airway pressures, decreased oxygen saturation, ineffective coughing, or suspected secretion retention.

🌻 Suctioning can cause complications such as hypoxemia, mucosal trauma, bronchospasm, dysrhythmias, and increased intracranial pressure, making unnecessary suctioning potentially harmful.

🌻 Assessment-based suctioning limits airway trauma while still maintaining airway patency and effective ventilation.

🌻 The nurse should therefore continuously assess respiratory status and suction the endotracheal tube when findings indicate that secretions are obstructing effective airflow.

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Answer 5

Correct Answers:

Coughing or attempting to talk

Rationale :

🌸 A high inspiratory pressure alarm indicates that the ventilator is encountering increased resistance while attempting to deliver the prescribed breath.

🌸 Coughing, biting the endotracheal tube, attempting to speak, retained secretions, bronchospasm, or kinked tubing can all increase airway resistance and trigger this alarm.

🌸 A conscious or inadequately synchronized patient who is coughing or trying to talk may generate pressure against the ventilator-delivered breath.

🌸 The nurse should immediately assess the patient and ventilator system because high-pressure alarms can indicate airway obstruction or reduced lung compliance.

🌸 Identifying and correcting the cause quickly helps maintain effective ventilation and prevents complications associated with excessive airway pressures.

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Answer 6

Correct Answers:

Initiating an Atracurium infusion

Rationale :

♠️ Severe ARDS sometimes requires specialized lung-protective ventilation strategies in which persistent patient-ventilator dyssynchrony can significantly compromise ventilation despite adequate analgesia and sedation.

♠️ Atracurium is a neuromuscular blocking agent that produces skeletal muscle paralysis and can eliminate spontaneous respiratory effort that interferes with mechanical ventilation.

♠️ Neuromuscular blockade may be considered in selected patients with severe ARDS when deep sedation alone does not achieve ventilator synchrony or when dangerously high respiratory effort persists.

♠️ Paralysis can facilitate delivery of prescribed lung-protective ventilation, but it requires continuous ventilatory support, adequate analgesia and sedation, eye protection, and close neuromuscular monitoring.

♠️ Because this patient is already receiving propofol and fentanyl yet remains dyssynchronous, a neuromuscular blocker such as atracurium is the most appropriate anticipated order among the choices.

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Answer 7

Correct Answers:

"Our main concern is avoiding the development of a widespread infection called sepsis."

Rationale :

🧡 Ventilator-associated pneumonia (VAP) is a serious pulmonary infection occurring in patients receiving invasive mechanical ventilation and can cause substantial morbidity.

🧡 Infection can progress beyond the lungs and trigger sepsis, a life-threatening systemic response associated with organ dysfunction.

🧡 Critically ill mechanically ventilated patients are particularly vulnerable because they often have impaired defenses, invasive devices, and significant underlying illness.

🧡 Treatment usually includes appropriate antimicrobial therapy, respiratory support, secretion management, and close monitoring for systemic deterioration.

🧡 Teaching the family that preventing or promptly recognizing sepsis and other complications is a major concern gives accurate information about the seriousness of VAP.

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Answer 8

Correct Answers:

Increase the Fentanyl and/or Midazolam IV infusion rates.

Rationale :

💙 The ordered sedation target is a RASS score of 0 to −2, ranging from alert/calm to lightly sedated, yet this patient is currently restless, tachypneic, and reaching for the endotracheal tube.

💙 These behaviors indicate inadequate analgesia/sedation and poor ventilator tolerance, placing the patient at risk for accidental extubation and respiratory deterioration.

💙 A respiratory rate of 32 breaths/min while receiving assist-control ventilation also suggests significant distress or ventilator dyssynchrony that requires immediate assessment and correction.

💙 After rapidly checking for reversible causes such as pain, hypoxemia, secretions, tube obstruction, or equipment problems, titrating the prescribed fentanyl and/or midazolam toward the ordered RASS target is appropriate.

💙 Adequate analgesia and sedation can reduce agitation, improve ventilator synchrony, decrease oxygen consumption, and protect the endotracheal tube from self-removal.

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Answer 9

Correct Answers:

Hyperoxgenate prior to suctioning.

Rationale :

❣️ Endotracheal suctioning temporarily removes oxygen from the airway and can cause hypoxemia, particularly in critically ill mechanically ventilated patients.

❣️ Preoxygenation or hyperoxygenation before suctioning increases the patient's oxygen reserve and helps reduce suction-related oxygen desaturation.

❣️ Suctioning should be performed only when clinically indicated, using appropriate sterile or closed-system technique and limiting the duration of suction passes.

❣️ Oxygen saturation, heart rate, respiratory status, and patient tolerance should be monitored closely because suctioning can also cause dysrhythmias, bronchospasm, mucosal injury, and increased intracranial pressure.

❣️ Hyperoxygenation immediately before suctioning is therefore an important safety intervention when managing an intubated mechanically ventilated patient.

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Answer 10

Correct Answers:

Uncompensated respiratory acidosis; hyperoxgenated

Rationale :

✏️ The pH of 7.31 is below the normal range of 7.35–7.45, indicating acidemia.

✏️ The PaCO₂ of 48 mm Hg is elevated above the normal range of approximately 35–45 mm Hg, identifying carbon dioxide retention as the respiratory cause of the acidemia.

✏️ The HCO₃⁻ of 22 mEq/L remains within the normal range, indicating that significant renal metabolic compensation has not yet occurred; therefore, the disorder is uncompensated respiratory acidosis.

✏️ The PaO₂ of 115 mm Hg is above the usual arterial oxygen range, which is consistent with hyperoxygenation, particularly if the patient is receiving supplemental oxygen.

✏️ The combined findings are therefore most consistent with uncompensated respiratory acidosis with hyperoxygenation.

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QLexNursing

1 :
The physician orders Dopamine drip to be initiated at 2 mcg/kg/min for a patient with a slow heart rate. The patient weighs 78 kg. Dopamine 400 mg is supplied in 'normal saline. At what rate would the nurse initiate the IV infusion (in mL/hr)? Round to the nearest tenths.

4 :
The nurse, caring for a patient with an endotracheal tube understands that endotracheal suctioning is needed to facilitate removal of secretions. What concept should the nurse consider in developing the patient's plan of care regarding endotracheal suctioning?

5 :
The nurse is caring for a mechanically ventilated patient and responds to a high inspiratory pressure alarm. Recognizing possible causes for the alarm, the nurse assesses for which of the following?

6 :
The physician orders a non-traditional ventilator mode as part of treatment for a patient with acute respiratory distress syndrome. The patient is on a propofol and fentanyl infusion but there still is dyssynchrony with the ventilator. Which physician order would the nurse anticipate next?

7 :
The nurse is providing teaching to the family of a patient who has been diagnosed with ventilator-associated pneumonia. Which of the following statements would be appropriate to include in the teaching?

9 :
When caring for a patient who is orally intubated and mechanically ventilated, which of the following interventions by the ICU nurse would be the most appropriate?

10 :
A patient has the following initial arterial blood gas values: pH 7.31, PaCO2 48 mm Hg. Bicarbonate 22 mEq/L, Pa02 115 mm Hg. 02 saturation 99%. How should the nurse Interpret these values?

QLexNursing

1 : The physician orders Dopamine drip to be initiated at 2 mcg/kg/min for a patient with a slow heart rate. The patient weighs 78 kg. Dopamine 400 mg is supplied in 'normal saline. At what rate would the nurse initiate the IV infusion (in mL/hr)? Round to the nearest tenths.

4 : The nurse, caring for a patient with an endotracheal tube understands that endotracheal suctioning is needed to facilitate removal of secretions. What concept should the nurse consider in developing the patient's plan of care regarding endotracheal suctioning?

5 : The nurse is caring for a mechanically ventilated patient and responds to a high inspiratory pressure alarm. Recognizing possible causes for the alarm, the nurse assesses for which of the following?

6 : The physician orders a non-traditional ventilator mode as part of treatment for a patient with acute respiratory distress syndrome. The patient is on a propofol and fentanyl infusion but there still is dyssynchrony with the ventilator. Which physician order would the nurse anticipate next?

7 : The nurse is providing teaching to the family of a patient who has been diagnosed with ventilator-associated pneumonia. Which of the following statements would be appropriate to include in the teaching?

9 : When caring for a patient who is orally intubated and mechanically ventilated, which of the following interventions by the ICU nurse would be the most appropriate?

10 : A patient has the following initial arterial blood gas values: pH 7.31, PaCO2 48 mm Hg. Bicarbonate 22 mEq/L, Pa02 115 mm Hg. 02 saturation 99%. How should the nurse Interpret these values?

1 :
The physician orders Dopamine drip to be initiated at 2 mcg/kg/min for a patient with a slow heart rate. The patient weighs 78 kg. Dopamine 400 mg is supplied in 'normal saline. At what rate would the nurse initiate the IV infusion (in mL/hr)? Round to the nearest tenths.

4 :
The nurse, caring for a patient with an endotracheal tube understands that endotracheal suctioning is needed to facilitate removal of secretions. What concept should the nurse consider in developing the patient's plan of care regarding endotracheal suctioning?

5 :
The nurse is caring for a mechanically ventilated patient and responds to a high inspiratory pressure alarm. Recognizing possible causes for the alarm, the nurse assesses for which of the following?

6 :
The physician orders a non-traditional ventilator mode as part of treatment for a patient with acute respiratory distress syndrome. The patient is on a propofol and fentanyl infusion but there still is dyssynchrony with the ventilator. Which physician order would the nurse anticipate next?

7 :
The nurse is providing teaching to the family of a patient who has been diagnosed with ventilator-associated pneumonia. Which of the following statements would be appropriate to include in the teaching?

9 :
When caring for a patient who is orally intubated and mechanically ventilated, which of the following interventions by the ICU nurse would be the most appropriate?

10 :
A patient has the following initial arterial blood gas values: pH 7.31, PaCO2 48 mm Hg. Bicarbonate 22 mEq/L, Pa02 115 mm Hg. 02 saturation 99%. How should the nurse Interpret these values?