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An abnormally rapid rate of respiration.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



(also called polypnea), quick, shallow breathing without disturbance of rhythm. Tachypnea is a form of inspiratory dyspnea (labored breathing) unaccompanied by such clinical symptoms as constrained body position or cyanosis of the lips. Tachypnea may occur in healthy persons during physical exertion or nervous excitement.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Patients' signs and symptoms included dizziness, vomiting, tachypnea, syncope, and tachycardia and were consistent with acute cyanide poisoning (3,5); the absence of fever made infectious etiology unlikely.
Symptomatology of Paroxysmal Sympathetic Hyperactivity and Seizures Paroxysmal Seizures Sympathetic Hyperactivity Chewing movements X Cyanosis X Diaphoresis X X Dystonia, hypertonicity X X Hypertension X X Hyperthermia X X Hypotension X Incontinence X Lip smacking X Neurological status change X X Staring or eye deviation X Post-ictal period X Pupil dilation X Salivation X Tachycardia X X Tachypnea X Sources: Abou-Khalil, Gallagher, & Macdonald, 2016; Choi et al., 2013; Farias-Moeller et al., 2015; Goldenberg, 2010; Liu, Jolly, & Pokala, 2013; McPeak, Galloway, & Bodensteiner, 2010; Meyer, 2014; Rabinstein & Benarroch, 2008; Raithel et al., 2015; Sharma, 2013; Tarabar, Ulrich, & D'Onofrio, 2013; Wiebe, 2016.
Most significant symptom of acyanotic heart disease was sweating during feed, interrupted feeding and respiratory difficulty and signs were tachypnea and murmur.
Summaries from initial and follow up visits Diagnostic testing Interventions She was admitted to No data Referred to our other state hospital hospital with a with aggravated preliminary diagnosis dyspnea, tachypnea, of pulmonary embolism and palpitation The baby's condition Ultrasonographic Caesarian section examination: 38th before weeks mature baby cardiopulmonary bypass Severe dyspnea, Transthoracic Stuck mitral tachypnea and echocardiography: prosthetic valve bilateral leg 1) Immobile and swelling mobile thrombi blocking valve [down arrow] movement on both sides of her mitral prosthesis surfaces.
The effects on LOS of age, heart rate, lactate dehydrogenase (LDH), systolic blood pressure, tachypnea, Q-SOFA score, MCP1, P-selectin, and lactate were analysed with Cox regression analysis.
A 2016 systematic review and meta-analysis of 3 RCTs that included 3200 women with late preterm labor (between 34 weeks 0 days and 36 weeks 6 days) found that women who were given betamethasone had a significantly lower incidence of transient tachypnea of the newborn (number needed to treat [NNT]=37; relative risk [RR] =0.72; 95% confidence interval [CI], 0.56-0.92), severe respiratory distress syndrome (NNT=114; RR=0.60; 95% CI, 0.33-0.94), and use of surfactant (NNT=92; RR=0.61; 95% CI, 0.38-0.99).
A PSH episode was defined as a cluster of symptoms, which include hyperthermia without a source of infection, hypertension, tachycardia, tachypnea (based on age-appropriate vital sign parameters), diaphoresis, and/or dystonia.
He presented to the emergency department two days after his operation with seizure, tachycardia, tachypnea, and fever up to 38.6 degrees Celsius.
The ED physical exam noted a newborn who appeared mildly dehydrated, with moderate distress as evidenced by retractions, tachypnea, and nasal flaring.
The incidence of respiratory morbidity, including respiratory distress syndrome (RDS) and transient tachypnea of the newborn (TTN), with an increasing rate of neonatal intensive care unit (NICU) admissions, are higher in the late preterm infants, compared to term infants.2,3
An 8-month-old girl was referred to our hospital for recurrent respiratory tract infections and tachypnea that were refractory to treatment.
494 (48.43%) followed by neonatal sepsis which were 200 (19.61%), respiratory distress syndrome (RDS) 74 (7.25%), neonatal jaundice 65 (6.37%), meconium aspiration syndrome (MAS) 53 (5.20%), birth asphyxia (BAS) 51 (5%), transient tachypnea of newborn (TTN) 40 (3.92%), congenital malformations 27 (2.65%), infant of diabetic mother 9 (0.88%), neonatal seizures 6 (0.59%) and hemorrhagic disease of the newborn 1 (0.10%).