NCLEX Vital Signs and Physical Assessment Questions

The ranges you must know without hesitating

Vital sign questions are only difficult when the numbers are not automatic. For adults, oral temperature runs 36.5 to 37.5 degrees Celsius, heart rate 60 to 100 beats per minute, respirations 12 to 20 per minute, blood pressure below 120 over 80, and oxygen saturation 95 to 100 percent. Pain is documented as the fifth vital sign using a scale appropriate to the client's age and cognition.

Route changes the temperature expectation. Rectal and temporal readings run slightly higher than oral, while axillary readings run lower. Consistency of route matters for trending, and the route used should be documented. Tympanic readings are quick but technique-sensitive in children.

Paediatric values shift predictably with age: newborns have heart rates around 100 to 160 and respirations 30 to 60, toddlers 90 to 140 and 20 to 30, school-age children 70 to 110 and 18 to 25, and adolescents approach adult values. Blood pressure rises with age. A heart rate of 130 alarms in an adult but is expected in an infant, and item writers exploit that difference constantly.

Patterns that signal deterioration

Respiratory rate is the most sensitive early warning sign and the one most often omitted in practice. A rate rising from 16 to 28 in a postoperative client is a genuine alert even if every other value looks acceptable, because tachypnoea compensates for hypoxaemia, acidosis and shock long before blood pressure moves. Conversely, a rate below ten in a client receiving opioids suggests respiratory depression and calls for stimulation, oxygen and possibly naloxone.

Pulse pressure — systolic minus diastolic — carries diagnostic weight. Narrowing pulse pressure suggests early shock or cardiac tamponade, whereas widening pulse pressure with bradycardia and irregular respirations forms Cushing's triad, indicating dangerously raised intracranial pressure. That combination is a report-immediately finding on any neurological item.

Orthostatic vital signs identify volume depletion and fall risk. Measure supine, then sitting, then standing after one to three minutes; a systolic drop of twenty millimetres of mercury or a diastolic drop of ten, or a heart rate rise of twenty beats, is a positive result. The nursing response is to keep the client safe, assist with slow position changes and evaluate for dehydration or medication effect.

Pulse oximetry has limits worth knowing. Poor perfusion, cold extremities, nail polish, motion and carbon monoxide poisoning all distort readings. If the number does not match the client's appearance, assess the client first — a client who is dusky, restless and using accessory muscles is hypoxic regardless of what the monitor shows.

• •Rising respiratory rate is the earliest deterioration signal
• •Narrowing pulse pressure suggests shock; widening with bradycardia suggests raised ICP
• •Positive orthostatics: 20 mmHg systolic or 10 mmHg diastolic drop
• •Trust your assessment over an implausible oximeter reading

Assessment technique and the order examiners expect

Physical assessment follows inspection, palpation, percussion then auscultation — with one exception. For the abdomen, auscultate before palpating or percussing, because manipulation alters bowel sounds. Item writers test this reversal frequently, and choosing the wrong sequence is an easy avoidable loss.

Assessment moves from least to most invasive and from general to specific. A focused assessment targets the presenting problem, while a comprehensive assessment covers all systems on admission. When a client's condition changes, the correct first action is usually a focused reassessment of the affected system rather than a full head-to-toe survey, because time matters.

Auscultation technique carries its own testable details: the diaphragm detects high-pitched sounds such as breath sounds, bowel sounds and normal heart sounds, while the bell detects low-pitched sounds such as murmurs and bruits. Listen to lung fields side to side for comparison, count an irregular pulse for a full minute, and take an apical pulse before administering digoxin, holding the dose if the rate is below sixty in an adult.

• •Abdomen: inspect, auscultate, percuss, palpate
• •Diaphragm for high-pitched sounds, bell for low-pitched
• •Count irregular pulses for a full 60 seconds
• •Apical pulse before digoxin; hold if under 60 in an adult

Turning vital signs into a priority answer

When an item lists several clients with sets of vital signs and asks who to see first, work airway and breathing before circulation. A client with a respiratory rate of 32 and saturation of 88 percent outranks a client with a blood pressure of 88 over 54 who is alert, because oxygenation fails fastest. Add mental status as a tiebreaker: any abnormal vital sign accompanied by new confusion escalates in priority.

Compare against baseline rather than the textbook range where the stem provides one. A blood pressure of 100 over 60 is unremarkable in a young athlete but alarming in a client whose usual reading is 160 over 90. Similarly, an afebrile older adult or an immunosuppressed client may be seriously infected without ever mounting a fever, so a subtle temperature rise or a drop below normal deserves attention.

Finally, distinguish expected treatment effects from complications. A falling heart rate after a beta blocker, a modest blood pressure drop after a diuretic, or transient tachycardia after albuterol are anticipated. A heart rate below fifty with dizziness, a systolic pressure below ninety with oliguria, or a temperature above 38.5 degrees Celsius after surgery are complications requiring action and documentation.

• •Airway and breathing abnormalities outrank circulatory ones
• •New confusion escalates any abnormal vital sign
• •Always compare with the client's own baseline
• •Separate expected drug effects from true complications