TICLS

Pediatric Assessment Acronym

Author: Lahav Constantini, MD

Editor: Alyssa Haag, MD

Editor: Józia McGowan, DO

Editor: Kelsey LaFayette, DNP, ARNP, FNP-C

Illustrator: Jannat Day

Modified: Feb 04, 2026

What is TICLS?

TICLS, pronounced “tickles”, is an acronym mnemonic used for recalling parameters used during a pediatric health assessment. It stands for Tone, Interactiveness, Consolability, Look or gaze, and Speech or cry. These quick, initial observations can help clinicians determine whether an infant or child is in good overall health and whether their appearance and level of interaction with the environment is normal or abnormal for their age and development. It can also indicate if more in-depth evaluation of the patient is needed.

TICLS is also used as part of a broader assessment tool in pediatric emergency medicine called the Pediatric Assessment Triangle (PAT). The TICLS acronym in this case, aids in remembering what to look for when evaluating the appearance of the child, which serves as one arm of the triangle, together with the other two components: work of breathing and circulation to the skin.

An infographic detailing the pediatric assessment acronym, TICLS.

What does the “T” TICLS mean?

“T” stands for tone, which is the amount of tension or resistance of movement in muscles. Abnormal tone includes hypotonia, which is decreased or low muscle tone resulting in muscle weakness, and hypertonia, which is increased muscle tone resulting in muscle stiffness. Changes in muscle tone can suggest the presence of an underlying condition, such as nervous system lesions, acute or chronic illnesses, and genetic or metabolic disorders. In assessing muscle tone, clinicians observe if the infant moves spontaneously or resists examination. In the case of older children, their ability to sit or stand can be observed to determine muscle tone.

What does the “I” TICLS mean?

“I” stands for interactiveness. Here, the age-appropriate ability to interact with individuals and the environment is determined. The clinician observes the infant and establishes if they appear alert and whether they engage with them or their caregiver. Older children may also reach out for toys or surrounding objects, denoting a sufficient interactiveness level.

What does the “C” TICLS mean?

“C” stands for consolability, or in other words, the ability of the child to be comforted and consoled by their caregiver. This is done through careful observation, and it’s considered normal when the child is able to be more easily consoled by their caregiver than a stranger.

What does the “L” TICLS mean?

“L” stands for look or gaze. In this part of the assessment, the clinician examines the child's ability to make eye contact or follow an object with their eyes.

What does the “S” TICLS mean?

“S” stands for speech or cry. While an infant’s strong cry can be a sign of distress, in this evaluation, it’s a sign of good health as it indicates a clear and patent airway. In older, verbal children their speech is evaluated to determine if it’s age appropriate.

What are the most important facts to know about the TICLS acronym?

TICLS, pronounced tickles, is an acronym that stands for Tone, Interactiveness, Consolability, Look or gaze, and Speech or cry. It’s used as a mnemonic for parts of an initial health assessment of a pediatric patient. When one of these signs is abnormal for age and development, it indicates presence of an underlying disorder, which warrants further evaluation and management.

Key Takeaways

Definition	TICLS, pronounced “tickles”, is an acronym mnemonic used for recalling parameters used during a pediatric health assessment.
Uses	Part of the Pediatric Assessment Triangle (PAT): - Evaluation of the appearance* of the child - To determine whether an infant or child is in good overall health - To determine whether their appearance and level of interaction with the environment is normal or abnormal for their age and development - To indicate if more in-depth evaluation of the patient is needed *Other two components of PAT; work of breathing; circulation to the skin
T	Tone - Amount of tension or resistance of movement in muscles - Abnormal tone: - Hypotonia (weakness) - Hypertonia (stiffness) - Conditions underlying abnormal tone: - Nervous system lesions - Acute or chronic illnesses - Genetic or metabolic disorders - Assessment: - Spontaneous movement or resistance to examination - Ability to sit or stand (older children)
I	Interactiveness - Age-appropriate ability to interact with individuals/environment - Alertness and engagement
C	Consolability - Observed ability of the child to be comforted and consoled by their caregiver
L	Look or gaze - Ability to make eye contact or follow an object with their eyes
S	Speech or cry - Strong cry → sign of clear and patent airway - Older children: age-appropriate speech evaluation

References

Horeczko T, Enriquez B, McGrath NE, Gausche-Hill M, Lewis RJ. The pediatric assessment triangle: Accuracy of its application by nurses in the triage of children. J Emerg Nurs. 2013;39(2):182-189. doi:10.1016/j.jen.2011.12.020

Horeczko T, Gausche-Hill M. The paediatric assessment triangle: A powerful tool for the prehospital provider. Journal of Paramedic Practice. 2011;3(1).

Marcdante KJ, Kliegman R, Schuh AM. Nelson Essentials of Pediatrics. Elsevier; 2023.