Hypocapnia: Causes & Reasons

Possible Causes for Hypocapnia

In this case, we found capnography to be a very useful aid to monitor respiration in this patient and also to treat the hypocapnia. [ncbi.nlm.nih.gov]

The hypocapnia and hyperoxia obtained by applying these manoeuvres lengthen the duration of seizures without worsening the quality of the electroencephalographic trace. [ncbi.nlm.nih.gov]

Mask ventilation, hypocapnia, and seizure duration in electroconvulsive therapy. [elsevier.es]

Acute Hyperventilation

Abstract Acute hypocapnia decreases CBF, increases hemoglobin affinity for oxygen and causes cerebral tissue hypoxia. [ncbi.nlm.nih.gov]

They will also be taught in a practical way to recognize early clinical signs and symptoms of hypocapnia. [clinicaltrials.gov]

The reduction in MCA V_ was elicited by voluntary hyperventilation induced-hypocapnia. [ci.nii.ac.jp]

Psychogenic Hyperventilation

Respiratory alkalosis Synonym Hypocapnia Related conditions Metabolic alkalosis Metabolic acidosis Respiratory acidosis 1. [renalandurologynews.com]

Full text ABSTRACT Hyperventilation is accompanied by respiratory alkalosis and hypocapnia. [medigraphic.com]

Key words: Hyperventilation, respiratory alkalosis, hypocapnia, hyperlactatemia. REFERENCIAS West JB. Respiratory physiology: the essentials. 9th edition. [medigraphic.com]

Respiratory Alkalosis

Respiratory alkalosis Synonym Hypocapnia Related conditions Metabolic alkalosis Metabolic acidosis Respiratory acidosis 1. [clinicaladvisor.com]

In both groups clear conditioning occurred, but there was no effect of hypocapnia. Results are critically discussed. [ncbi.nlm.nih.gov]

The nature of the renal adaptation to chronic hypocapnia. [us.bestpractice.bmj.com]

Acidosis

[…] during sustained hypocapnia. 27. 2. [slideshare.net]

Often these diseases stimulate ventilation and hypocapnia due to reflex receptors and hypoxia. [emedicine.com]

Deficiency Aging Extracellular fluid volume expansion Lead Beta Blocker s Prostaglandin Inhibitor Methyldopa Carbonic anhydrase inhibitor Acetazolamide Mefenamic acid Post-hypocapnia [fpnotebook.com]

Decreased Diffusion Capacity of the Lung

Hypocapnia is P co 2 35 mm Hg. [msdmanuals.com]

Hypocapnia Hypocapnia or hyperventilation is a disorder with abnormally reduced P aCO2. [zuniv.net]

With gross hypoxia of rapid onset hypocapnia depresses respiration, but compensation occurs over about six days. [anaesthetist.com]

Fat Embolism

Laboratory studies Arterial blood gas findings often demonstrate hypoxia, PaO2 <60 mmHg, and hypocapnia Hematologic studies may show non-specific findings such as thrombocytopenia [symptoma.com]

Arterial hypoxemia with hypocapnia (decreased ETC02) are generally associated with a pulmonary embolus(Barash). [quizlet.com]

Arterial blood gases will show hypoxia, pO 2 usually less than 8 kPa (60 mm Hg) and hypocapnia. [patient.info]

High-Altitude Cerebral Edema

Prolonged exertion in low oxygen also causes serious hypocapnia, lower carbon dioxide in the bloodstream, which may play a role in HACE. [en.wikipedia.org]

[…] regions of South America and the Himalayas •Extreme altitude, >5490 m (>18,000 ft) complete acclimatization generally is not possible accompanied by severe hypoxemia and hypocapnia [slideshare.net]

Cerebral blood flow is decreased by hypocapnia, is increased by hypoxia, and consequently varies with the balance between arterial CO 2 and O 2. [brooksidepress.org]

Metabolic Acidosis

Post-hypocapnia In prolonged hypercapnia renal tubular cells compensate for a prolonged respiratory alkalosis by decreasing reclaimation and generation of HCO 3 (which takes [nimbot.com]

Blood gas analysis showed severe metabolic acidosis resulting in hypocapnia and a normal pH ( table 1 ). [anesthesiology.pubs.asahq.org]

Underexcretion of CO2 produces hypercapnia, and overexcretion causes hypocapnia. Nevertheless, production and excretion are again matched at a new steady-state Paco2. [accessmedicine.mhmedical.com]

Salicylate Poisoning

No significant difference of Pco(2) between the two groups was found, and hence no simple relationship exists between hypocapnia and the development of acidaemia in salicylate [ncbi.nlm.nih.gov]

On admission to the intensive care unit, his clinical condition was unchanged; arterial blood gas analysis revealed a metabolic acidosis, hypoxia and hypocapnia. [journals.lww.com]

In experimental animals, lactate accumulation is minimal if the initial fall in PCO2 is prevented, but it gradually becomes more prominent as hypocapnia is allowed to occur [prep4usmle.com]

Pulmonary Embolism

Arterial blood gas analysis showed hypoxemia-hypocapnia and D-dimer level was high. [ncbi.nlm.nih.gov]

[…] right ventricular strain S1Q3T3 presence of S wave in lead I and Q wave and inverted T wave in lead III T-wave inversions in V1-V4 Arterial blood gas findings hypoxemia hypocapnia [medbullets.com]

[…] chest pain and hemoptysis Leads to surfactant dysfunction → atelectasis → ↓ PaO2 Triggers respiratory drive → hyperventilation and tachypnea → respiratory alkalosis with hypocapnia [amboss.com]

Recurrent Pulmonary Embolism

Mechanisms of hypoxemia and hypocapnia in pulmonary embolism. Am J Respir Crit Care Med 1995; 152 : 336–347. 10 Frisbie JH, Steele DJR. [nature.com]

Arterial or venous blood gas measurement may show an increased alveolar to arterial oxygen (A-a) difference (sometimes called A-a gradient) or hypocapnia; one or both of these [merckmanuals.com]

[…] ventilation (tachypnea), hypoxemia due to ventilation/perfusion (V/Q) mismatch and low mixed venous oxygen content as a result of low cardiac output, atelectasis due to alveolar hypocapnia [merckmanuals.com]

Gram-Negative Septicaemia

Hypocapnia and gram-negative bacteremic shock. Am J Surg. 1970 Apr;119(4):433–439. [PubMed] [Google Scholar] Bone RC. Let's agree on terminology: definitions of sepsis. [ncbi.nlm.nih.gov]

[…] criteria: fever (temperature above 38°C) or hypothermia (temperature below 35.5°C), tachycardia (more than 90 beats per minute), tachypnea (more than 20 breaths per minute), or hypocapnia [ccforum.biomedcentral.com]

Acute Mountain Sickness

The current data revealed that on going to high altitude, the subjects experienced not only hypoxia but also developed hypocapnia, therefore, both hypoxia and hypocapnia may [jpma.org.pk]

The hypoxic ventilatory drive causes hypocapnia and a reduction in respiratory drive [11]. [journals.plos.org]

Severe altitude illness occurs most commonly in this range. [10] Extreme altitude [ edit ] Above 5,500 metres (18,000 ft), marked hypoxemia, hypocapnia, and alkalosis are [en.wikipedia.org]

Hypokalemia

[…] hypoalbuminemia 低アルブミン血症 hypoaldosteronism 低アルドステロン症/低アルドステロン hypoallergenic product 低アレルギー製品 hypocalcemia 低カルシウム血症/低カルシウム血 hypocalciuric hypercalcemia 低カルシウム尿性高カルシウム血症 hypocapnia [jpeds.or.jp]

[…] valproate, 6-mercaptopurine, streptozotocin, iphosphamide, lead, cadmium, mercury) Associated with other clinical entities (vitamin D deficiency, hyperparathyroidism, chronic hypocapnia [mja.com.au]

Hypoxia

[…] associated with periodic breathing owing to alternating respiratory stimulation by hypoxia and subsequent apneas or hypopneas due to inhibition by hyperventilation‐induced hypocapnia [doi.org]

Arterial blood gas (ABG) Blood gas monitoring is used to assess acid-base status and to avoid hyperoxia and hypoxia as well as hypercapnia and hypocapnia. [emedicine.medscape.com]

Liver Failure

The goals of respiratory care are similar to those in other critical illnesses; hyperventilation to induce hypocapnia may be used for emergent control of intracranial hypertension [nejm.org]

Diabetic Ketotic Coma

[…] play a part in the development of cerebral edema, recent data suggest that cerebral edema in children with DKA is related to brain ischemia. 42 In children with DKA, both hypocapnia [spectrum.diabetesjournals.org]

Amniotic Fluid Embolism

Hypocapnia caused a lower Apgar score and delayed neonatal breathing. [medichub.ro]

While excessive hypocapnia may cause fetal harm by reducing placental perfusion, the effects of hypercapnia on the fetus are less clear. [medichub.ro]

Another small study compared ventilated women delivered with mild hypercapnia (mean CO 2 : 57.6 mmHg) with ventilated women with mild hypocapnia (mean CO 2 : 26.4 mmHg) and [medichub.ro]

St. Louis Encephalitis

In two of the conscious patients cerebral blood flow was normal despite normal arterial oxygen tension and systemic hypocapnia; inflammatory cerebral vasodilatation may have [annals.org]

High-Altitude Pulmonary Edema

Renal response to short-term hypocapnia in man. Kidney Int 1975;8:376-84. [ PUBMED ] 21. Hackett PH, Roach RC. High altitude cerebral edema. [lungindia.com]

Acute Alcohol Intoxication

Acute alcohol intoxication refers to the development of severe and possibly life-threatening complications after ingestion of large amounts of alcohol. Symptoms range from changes in behavior to severe hypothermia, vomiting, altered consciousness, coma, and respiratory insufficiency that may be fatal. A detailed[…] [symptoma.com]

Third Trimester Pregnancy

OBJECTIVE: To perform a prospective, observational study in a tertiary center to determine whether anemia (hemoglobin level < 10 g/dL) developing in the third trimester was associated with an increased placental weight/birth weight ratio (placental ratio) and whether the placental ratio correlated with the[…] [ncbi.nlm.nih.gov]

Anxiety Disorder

PURPOSE: To evaluate the differential gray matter (GM) and white matter volume alterations between healthy controls and patients with obsessive-compulsive disorder (OCD) and generalized anxiety disorder (GAD) using voxel-based morphometry (VBM). METHOD: Patients with OCD and GAD, and healthy controls underwent[…] [ncbi.nlm.nih.gov]

Chronic Kidney Insufficiency

Chronic kidney insufficiency affects a significant number of individuals in the developed countries, particularly the United States. The progressive nature of the disease and a substantial reduction in the quality of life over the period of time are the primary reasons why an early diagnosis is crucial. Anemia,[…] [symptoma.com]

Acute Kidney Injury

Definition (NCI) Acute renal failure caused by the cell death of the renal tubules. Causes include nephrotoxins, cytotoxic drugs, and antibiotics. Definition (MSH) Acute kidney failure resulting from destruction of EPITHELIAL CELLS of the KIDNEY TUBULES. It is commonly attributed to exposure to toxic agents or renal[…] [fpnotebook.com]

Acute Respiratory Distress Syndrome

Acute respiratory distress syndrome (ARDS) is a clinical syndrome of severe dyspnea of rapid onset, hypoxemia, and diffuse pulmonary infiltrates leading to respiratory failure. ARDS is caused by diffuse lung injury from many underlying medical and surgical disorders. The lung injury may be direct, as occurs in toxic[…] [accessmedicine.mhmedical.com]

Pneumococcal Pneumonia

Streptococcus pneumoniae is a frequent cause of community acquired pneumonia (CAP), with the largest burden of disease attributed to non-bacteremic pneumonia. Due to the high persistent burden of disease, pneumococcal pneumonia, particularly non-bacteremic pneumococcal pneumonia, continues to be a major public[…] [ncbi.nlm.nih.gov]

Cerebral Hemorrhage

Henoch-Schonlein purpura (HSP) with intestinal perforation and cerebral hemorrhage is a very rare clinical condition. There has been no report of HSP complicated with both intestinal perforation and cerebral hemorrhage until October 2012. Here we describe a case of HSP with intestinal perforation and cerebral[…] [ncbi.nlm.nih.gov]

Aspiration Pneumonia

AIMS: To determine suitable food textures for videofluoroscopic study of swallowing (VFSS), in order to predict and prevent subsequent aspiration pneumonia in esophageal cancer patients with dysphagia after surgery. MATERIALS AND METHODS: We evaluated 45 hospitalized esophageal cancer patients who underwent[…] [ncbi.nlm.nih.gov]