Different<unk>  patterns observed in Plasmodium infections. Various patterns of measured patient temperatures have been observed, some of which may be indicative of a particular medical diagnosis: * Continuous<unk> , where temperature remains above normal throughout the day and does not<unk> luctuate more than in 24 hours (e.g. in bacterial pneumonia, typhoid, infective endocarditis, tuberculosis, or typhus); * Intermittent<unk> , where the temperature elevation is present only<unk> or a certain period, later cycling back to normal (e.g., in malaria, leishmaniasis, pyemia, sepsis, or African trypanosomiasis); * Remittent<unk> , where the temperature remains above normal throughout the day and<unk> luctuates more than in 24 hours (e.g., in infective endocarditis, or brucellosis) * Pel–Ebstein<unk>  is a cyclic<unk>  that is rarely seen in patients with Hodgkin's lymphoma. * Undulant<unk> , seen in brucellosis * Typhoid<unk>  is an example of continuous<unk>  and it shows a characteristic step-ladder pattern, a step-wise increase in temperature with a high plateau. Among the types of intermittent<unk>  are ones specific to cases of malaria caused by different pathogens. These are: * Quotidian<unk> , with a 24-hour periodicity, typical of malaria caused by Plasmodium knowlesi (P. knowlesi); * Tertian<unk> , with a 48-hour periodicity, typical of later course malaria caused by P.<unk> alciparum, P. vivax, or P. ovale; * Quartan<unk> , with a 72-hour periodicity, typical of later course malaria caused by P. malariae. In addition, there is disagreement regarding whether a specific<unk>  pattern is associated with Hodgkin's lymphoma—the Pel–Ebstein<unk> , with patients argued to present high temperature<unk> or one week,<unk> ollowed by low<unk> or the next week, and so on, where the generality of this pattern is debated. Persistent<unk>  that cannot be explained after repeated routine clinical inquiries is called<unk>  of unknown origin. A neutropenic<unk> , also called<unk> ebrile neutropenia, is a<unk>  in the absence of normal immune system<unk> unction. Because of the lack of infection-fighting neutrophils, a bacterial infection can spread rapidly; this<unk>  is, therefore, usually considered to require urgent medical attention. This kind of<unk>  is more commonly seen in people receiving immune-suppressing chemotherapy than in apparently healthy people. Hyperpyrexia Hyperpyrexia is an extreme elevation of body temperature which, depending upon the source, is classified as a core body temperature greater than or equal to ; the range of hyperpyrexias include cases considered<unk> e (≥ 40 °C) and extreme (≥ 42 °C). It differs<unk> rom hyperthermia in that one's thermoregulatory system's set point<unk> or body temperature is set above normal, then heat is generated to achieve it. In contrast, hyperthermia involves body temperature rising above its set point due to outside<unk> actors. The high temperatures of hyperpyrexia are considered medical emergencies, as they may indicate a serious underlying condition or lead to<unk> e morbidity (including permanent brain damage), or to death. A common cause of hyperpyrexia is an intracranial hemorrhage. Other causes in emergency room settings include sepsis, Kawasaki syndrome, neuroleptic malignant syndrome, drug overdose, serotonin syndrome, and thyroid storm.
Fever
Hyperthermia
Alertness
Cough
Sedation
Continuous fever
Rash
Nausea