Nursing Nerds

Respiratory Failure, Shock and Critical Care

Book 08 · Page 1414 / 15

Set B: the next-generation items, with condensed rationales

Figure brief · not yet drawn

A bowtie frame of two stacked left boxes, one wide center condition box, and two stacked right boxes joined by four narrowing connectors, beside a four-column trend table with a sparkline under the lactate row.

ITEM 1 · BOWTIE A 58-year-old with known metastatic breast cancer arrives in the emergency department with sudden dyspnea that began 40 minutes ago. Lung sounds are clear and equal bilaterally. Heart rate 118. Respiratory rate 32. Blood pressure 108/70. Oxygen saturation 88% on room air. Reports sharp right-sided pain worse on inspiration.

Center, the condition most likely: acute pulmonary embolism · tension pneumothorax · acute decompensated heart failure · community-acquired pneumonia

Left, two actions to take: apply supplemental oxygen and titrate to the ordered target · establish intravenous access · perform chest physiotherapy · restrict oral fluid intake · place the patient prone

Right, two parameters to monitor: oxygen saturation and respiratory rate · blood pressure and heart rate · bowel sounds · deep tendon reflexes · weight measured each morning

ITEM 2 · TREND A patient in septic shock is receiving fluid resuscitation and a vasopressor infusion.

1200140016001800
Blood pressure84/4692/5298/56104/62
Mean arterial pressure59657076
Heart rate12611810492
Respiratory rate28262218
Urine output per hour15 mL22 mL35 mL48 mL
Lactate4.4 mmol/L3.6 mmol/L2.5 mmol/L1.6 mmol/L

Which finding best indicates that the resuscitation is working?

  1. The systolic blood pressure has risen above 100 mmHg.
  2. The heart rate has fallen below 100 beats per minute.
  3. The lactate has fallen while the hourly urine output has risen.
  4. The respiratory rate has returned toward a normal range.

ITEM 3 · MATRIX Classify each ventilator scenario.

ScenarioHigh-pressure alarmLow-pressure alarmNeither
Thick secretions are audible in the endotracheal tube
The patient is biting down on the endotracheal tube
The circuit has separated at the elbow connector
The cuff is underinflated and the patient is making gurgling vocal sounds
The patient develops a right tension pneumothorax
Saturation reads 88% with an intact circuit and unchanged airway pressures

ITEM 4 · DROP-DOWN IN TEXT Complete the handoff. "The water seal chamber shows __(1)__, which indicates __(2)__, so the nurse first __(3)__."

(1): continuous bubbling · tidaling with respiration · no fluctuation at all (2): an air leak · normal lung re-expansion · an obstructed tube (3): assesses the patient and the dressing, then traces the connections from the patient outward · clamps the chest tube and notifies the provider · strips the tubing to clear the leak

ITEM 5 · SELECT ALL THAT APPLY A trauma patient is hypotensive. Select all findings that distinguish neurogenic shock from hypovolemic shock.

  1. A heart rate of 52 beats per minute
  2. Warm, dry skin below the level of injury
  3. Cool, clammy, pale extremities
  4. Flat neck veins
  5. Hypotension that persists after adequate fluid resuscitation
  6. Priapism

CONDENSED RATIONALES

Item 1 — Answer: acute pulmonary embolism; oxygen and intravenous access; saturation with respiratory rate, and blood pressure with heart rate A clear chest with sudden dyspnea and hypoxemia out of proportion to the examination, in a patient with malignancy, is embolism. crit Tension pneumothorax is discarded because breath sounds are equal and the blood pressure is maintained. Heart failure is discarded because the chest is clear. Pneumonia is discarded because onset was minutes, not days. Chest physiotherapy, fluid restriction, and prone positioning treat other conditions. Bowel sounds, reflexes, and morning weights do not track this deterioration. TRACE · P7

Item 2 — Answer: 3 Lactate falling with urine output rising are perfusion endpoints and they move together, which is the evidence resuscitation is working. Option 1 is a single pressure number and pressure can be borrowed from the vasopressor. Option 2 is one variable improving in isolation. Option 4 is real but is the least specific to perfusion. TRACE · P11

Item 3 — Answer: high, high, low, low, high, neither Secretions and biting raise resistance. Separation and a cuff leak lose volume from the circuit. Tension pneumothorax stiffens the lung and drives pressures up. A falling saturation with unchanged pressures and an intact circuit is an oxygenation problem, not a pressure alarm. TRACE · P9

Item 4 — Answer: continuous bubbling; an air leak; assesses the patient and dressing, then traces connections from the patient outward Tidaling is expected and indicates patency. Absent fluctuation suggests re-expansion or obstruction, not a leak. Clamping risks a tension pneumothorax and stripping damages pleural tissue, so both discarded actions are harm answers. TRACE · P8

Item 5 — Answer: 1, 2, 5, 6 Bradycardia, warm dry skin below the injury, fluid-resistant hypotension, and priapism all reflect lost sympathetic tone. Cool clammy extremities point to hypovolemia. Flat neck veins occur in both, so that finding cannot distinguish them. TRACE · P6

Margin notethe bowtie is the whole nursing process in one question.

Bowtie mechanics are → BOOK 02 · P3. Sepsis bundle timing is guideline-defined and institution-specific. Volumes are stated as given: → BOOK 06 · P5.

TakeawayThese formats reward a candidate who can hold a pattern, not one who can recall a fact.