Newborn Assessment

Newborn Assessment

Temperature

  • Normal Assessment:

    • Axillary temperature: 36.5C37.5C36.5^{\circ}C-37.5^{\circ}C (97.7F99.5F97.7^{\circ}F-99.5^{\circ}F).

  • Abnormal:

    • Decreased temperature: May indicate a cold environment, hypoglycemia, infection, or a central nervous system (CNS) problem. Immediate actions include instituting warming measures and checking the temperature again in 3030 minutes. Blood glucose should also be checked.

    • Increased temperature: May signify an infection or an excessively warm environment. Nursing interventions involve removing excessive clothing and checking for signs of dehydration.

  • Nursing Considerations:

    • Actively look for signs of infection.

    • Verify the temperature setting of the radiant warmer or incubator.

    • Check the accuracy of the thermometer if the infant's skin feels unusually warm or cool to the touch.

    • Report any abnormal temperatures to the physician promptly.

Pulses

  • Normal Assessment:

    • Heart rate: 120160120-160 beats/min (bpm). This rate can be 100100 bpm when sleeping and up to 180180 bpm when crying.

    • Rhythm is regular.

    • Point of maximal impulse (PMI) is located at the third to fourth intercostal space (ICS), lateral to the midclavicular line.

    • Brachial, femoral, and pedal pulses are present and equal bilaterally.

  • Abnormal:

    • Tachycardia (heart rate greater than 160160 bpm): Can be associated with respiratory problems, anemia, infection, or cardiac conditions.

    • Bradycardia (heart rate less than 120120 bpm): May indicate asphyxia or increased intracranial pressure (ICP).

    • PMI shifted to the right: Suggests dextrocardia (heart on the right side) or pneumothorax.

    • Murmurs: Can be normal and transient in newborns, or they may indicate congenital heart defects.

    • Dysrhythmias: Irregular heart rhythms.

    • Absent or unequal pulses: May be a sign of coarctation of the aorta (a narrowing of the aorta).

  • Nursing Considerations:

    • Document the precise location of any detected murmurs.

    • Immediately refer cases of abnormal heart rates, rhythms, sounds, or pulses for further evaluation.

Respiration

  • Normal Assessment:

    • Respiratory rate: 306030-60 breaths per minute, with an average of 404940-49 breaths per minute.

    • Respirations are typically irregular, shallow, and unlabored.

    • Chest movements are symmetric, and breath sounds are present and clear bilaterally.

  • Abnormal:

    • Tachypnea (rapid breathing) or slow respiration.

    • Nasal flaring, grunting, or gasping: These are signs of respiratory depression or distress.

    • Periods of apnea longer than 2020 seconds, or apnea accompanied by changes in heart rate or color.

    • Moist, coarse breath sounds (e.g., crackles, rhonchi): Indicate fluid in the lungs.

  • Nursing Considerations:

    • Mild variations in respiration often require continued monitoring and usually resolve in the early hours after birth.

    • If respiratory abnormalities are persistent or more than mild, nursing actions include suctioning, administering oxygen, notifying the physician, and initiating more intensive care.

Weight

  • Normal Assessment:

    • Weight range: 250040002500-4000 g (55 lb, 88 oz to 88 lb, 1313 oz).

    • A weight loss of up to 10%10\% is considered normal during the early days after birth.

  • Abnormal:

    • High weight: May indicate a large for gestational age (LGA) infant or maternal diabetes.

    • Low weight: Suggests a small for gestational age (SGA) infant, prematurity, multifetal pregnancy, or maternal medical conditions that affected fetal growth.

    • Weight loss above 10%10\%: Points to potential dehydration or feeding problems.

  • Nursing Considerations:

    • Monitor daily weights diligently while the infant is inpatient.

    • Determine the underlying cause of any weight abnormalities.

    • Monitor for complications commonly associated with the identified cause.

Length

  • Normal Assessment:

    • Length range: 485348-53 cm (192119-21 in).

  • Abnormal:

    • Below normal length: Can be seen in SGA infants or with congenital dwarfism.

    • Above normal length: Typically associated with LGA infants or maternal diabetes.

  • Nursing Considerations:

    • Determine the cause when length is abnormal.

    • Monitor for complications consistent with the cause.

Head Circumference

  • Normal Assessment:

    • Head circumference range: 323632-36 cm (12.51412.5-14 in).

    • The head and neck together approximately account for one-fourth of the infant’s body surface area.

  • Abnormal:

    • Small head circumference: May indicate an SGA infant, microcephaly, or anencephaly.

    • Large head circumference: Can be a sign of an LGA infant, hydrocephalus, or increased intracranial pressure (ICP).

  • Nursing Considerations:

    • Determine the cause when head circumference is abnormal.

    • Monitor for complications commonly associated with the cause.

Chest Circumference

  • Normal Assessment:

    • Chest circumference range: 323632-36 cm (12.51412.5-14 in).

    • The head and neck together approximately account for one-fourth of the infant’s body surface area.

  • Abnormal:

    • Small chest circumference: May indicate an SGA infant, microcephaly, or anencephaly.

    • Large chest circumference: Can be a sign of an LGA infant, hydrocephalus, or increased intracranial pressure (ICP).

  • Nursing Considerations:

    • Determine the cause when chest circumference is abnormal.

    • Monitor for complications commonly associated with the cause.

Posture

  • Normal Assessment:

    • Extremities are flexed, move freely, resist extension, and quickly return to a flexed state.

    • Hands are usually clenched.

    • Movements are symmetric.

    • Slight tremors may be observed when the infant is crying.

    • If the infant was delivered breech, their legs may be extended and stiff.

    • The infant