2018, Williams Baptist College, Julio's review: "Zyrtec generic (Cetirizine) 10 mg, 5 mg. Only $0.91 per pill. Purchase cheap Zyrtec online.".
Age of malnourished child Determinant factors Birth Maternal factors (including nutrition) buy 5 mg zyrtec, gestational age Four-six months Infant feeding practices zyrtec 5 mg cheap, maternal ability to care for the child Six months to two years Complementary feeding practices order zyrtec 10mg visa, exposure to infections purchase zyrtec 10mg amex, disease and poor household food as the child gets older Two-ﬁve years Inadequate access to household food generic 5 mg zyrtec mastercard; infections and social deprivation In Ethiopia we use underweight for monitoring growth, as it indicates acute changes in the nutritional status of the child. If you determine that the child is malnourished (underweight), you should be able to analyse the causes, identify resources, suggest alternative solutions and arrive at decisions together with the mother or caregiver as to what should be done about the child. This process of assessment analysis and action is known as the ‘triple A’ cycle which is described below. Assess This stage involves weighing a child on a regular basis, and comparing the child’s growth with the standard and with their previous weight. This helps to identify any nutritional problems and will help you reﬂect on and review the child’s situation with the mother or caregiver. Analyse This requires exploration of any nutritional problem of the child in order to understand the root causes of any difﬁculties. You should identify gaps in feeding or care practices and think about different alternative solutions and resources that you can suggest to the mother or caregiver. Action This stage involves counselling the mother or caregiver about relevant actions. It involves decision making and resource identiﬁcation as well as deciding on individual and collective doable actions. After thorough discussion with the mother or caregiver, you should be able to decide on the speciﬁc actions they need to do. Ideally these actions are feasible and can realistically be done by the caregiver and the household. Each time the child is weighed again, re- assessment is done, followed by new analysis and new action as necessary. The most important issue in growth monitoring is not the position of the child ThetripleAcyclemeasuresthe on the growth curve at one particular time, but the direction of his or her direction of the child’s growth. A single point on the line of growth could be reached from different directions (that is, the child’s weight could go down to the single point or could move up to that point on the chart). Normally the child’s measurements are expected to fall between the lines indicated on the graph by -2 and +2 Z-scores (see the right hand side of the graph). It gives you information you need to be able to advise the mother and caregiver what they need to do for their child. You need to ﬁnd out the problem together with the mother or caregiver and counsel them on what to do. So you should encourage the mother to continue feeding the child in the way she has been doing. Knowing the rate and direction of growth will help you when you are counselling the mother or caregiver. You should always employ nutrition counselling as a tool to help you achieve this objective. Nutrition counselling is a process of ﬁnding the solution to the child’s nutritional problem together with their mother or caregiver. Unlike nutrition education, nutrition counselling is a two-way process during which the mother is actively involved in describing the child’s problems as well as participating in analysing the causes and identifying the available resources and solutions. Working together in this way with the mother or caregiver will help them reach a decision about the doable actions. Analysing causes and identifying 156 Study Session 11 Nutrition Education and Counselling actions are an important part of the overall process. Once you weigh the child and determine their nutritional status you need to share this information with the mother and negotiate with her what actions she can take. Follow-up is also very important and you should always recommend to the mother that she makes an appointment so you can see whether she has carried the agreed actions or whether she has had some problems with these. Counselling is an important skill, and as you have seen, a key element of the triple A cycle. Knowledge is not sufﬁcient because at least three contacts are needed to change behaviour or practice. These messages are communicated at the six health contacts and through other contacts outside the health sector. Write your answers on your study diary and discuss them with your Tutor at the next study support meeting. You can check your answers with the Notes on the Self-Assessment Questions at the end of the module.
Pressure generated by the left ventricle will be appreciably greater than the pressure generated by the right ventricle cheap zyrtec 5 mg with amex, since the existing pressure in the aorta will be so much higher generic zyrtec 10mg fast delivery. During the early phase of ventricular diastole 10mg zyrtec with mastercard, as the ventricular muscle relaxes proven 10mg zyrtec, pressure on the remaining blood within the ventricle begins to fall order zyrtec 5mg fast delivery. When pressure within the ventricles drops below pressure in both the pulmonary trunk and aorta, blood flows back toward the heart, producing the dicrotic notch (small dip) seen in blood pressure tracings. Since the atrioventricular valves remain closed at this point, there is no change in the volume of blood in the ventricle, so the early phase of ventricular diastole is called the isovolumic ventricular relaxation phase, also called isovolumetric ventricular relaxation phase (see Figure 19. In the second phase of ventricular diastole, called late ventricular diastole, as the ventricular muscle relaxes, pressure on the blood within the ventricles drops even further. When this occurs, blood flows from the atria into the ventricles, pushing open the tricuspid and mitral valves. As pressure drops within the ventricles, blood flows from the major veins into the relaxed atria and from there into the ventricles. Both chambers are in diastole, the atrioventricular valves are open, and the semilunar valves remain closed (see Figure 19. The T wave represents the repolarization of the ventricles and marks the beginning of ventricular relaxation. Heart Sounds One of the simplest, yet effective, diagnostic techniques applied to assess the state of a patient’s heart is auscultation using a stethoscope. S is the sound created by the closing of the1 2 1 atrioventricular valves during ventricular contraction and is normally described as a “lub,” or first heart sound. The second heart sound, S , is the sound of the closing of the semilunar valves during ventricular diastole and is described as a “dub”2 (Figure 19. In both cases, as the valves close, the openings within the atrioventricular septum guarded by the valves will become reduced, and blood flow through the opening will become more turbulent until the valves are fully closed. It may be the sound of blood flowing into the atria,3 or blood sloshing back and forth in the ventricle, or even tensing of the chordae tendineae. If the sound is heard later in life, it may indicate congestive heart failure, warranting further tests. Some cardiologists refer to the collective S , S , and S sounds as the “Kentucky gallop,” because they mimic those1 2 3 produced by a galloping horse. The fourth heart sound, S , results from the contraction of the atria pushing blood into a stiff4 or hypertrophic ventricle, indicating failure of the left ventricle. S occurs prior to S and the collective sounds S , S , and4 1 4 1 S are referred to by some cardiologists as the “Tennessee gallop,” because of their similarity to the sound produced by a2 galloping horse with a different gait. The term murmur is used to describe an unusual sound coming from the heart that is caused by the turbulent flow of blood. Murmurs are graded on a scale of 1 to 6, with 1 being the most common, the most difficult sound to detect, and the least serious. Phonocardiograms or auscultograms can be used to record both normal and abnormal sounds using specialized electronic stethoscopes. Inhalation increases blood flow into the right side of the heart and may increase the amplitude of right-sided heart murmurs. Expiration partially restricts blood flow into the left side of the heart and may amplify left-sided heart murmurs. Bradycardia is the condition in which resting rate drops below 60 bpm, and tachycardia is the condition in which the resting rate is above 100 bpm. If the patient is not exhibiting other symptoms, such as weakness, fatigue, dizziness, fainting, chest discomfort, palpitations, or respiratory distress, bradycardia is not considered clinically significant. However, if any of these symptoms are present, they may indicate that the heart is not providing sufficient oxygenated blood to the tissues. Treatment relies upon establishing the underlying cause of the disorder and may necessitate supplemental oxygen. Tachycardia is not normal in a resting patient but may be detected in pregnant women or individuals experiencing extreme stress. In the latter case, it would likely be triggered by stimulation from the limbic system or disorders of the autonomic nervous system. Some individuals may remain asymptomatic, but when present, symptoms may include dizziness, shortness of breath, lightheadedness, rapid pulse, heart palpations, chest pain, or fainting (syncope). Treatment depends upon the underlying cause but may include medications, implantable cardioverter defibrillators, ablation, or surgery. The cardioaccelerator regions stimulate activity via sympathetic stimulation of the cardioaccelerator nerves, and the cardioinhibitory centers decrease heart activity via parasympathetic stimulation as one component of the vagus nerve, cranial nerve X. Both sympathetic and parasympathetic stimulations flow through a paired complex network of nerve fibers known as the 868 Chapter 19 | The Cardiovascular System: The Heart cardiac plexus near the base of the heart.
The submucosa of the duodenum is the only site of the complex mucus-secreting duodenal glands (Brunner’s glands) discount 10 mg zyrtec, which produce a bicarbonate-rich alkaline mucus that buffers the acidic chyme as it enters from the stomach discount 5mg zyrtec with amex. Cells of the Small Intestinal Mucosa Cell Location in the Function type mucosa Epithelium/intestinal Absorptive Digestion and absorption of nutrients in chyme glands Epithelium/intestinal Goblet Secretion of mucus glands Paneth Intestinal glands Secretion of the bactericidal enzyme lysozyme zyrtec 10mg low price; phagocytosis Intestinal glands of G cells Secretion of the hormone intestinal gastrin duodenum Intestinal glands of Secretion of the hormone cholecystokinin zyrtec 5mg on line, which stimulates release of I cells duodenum pancreatic juices and bile Secretion of the hormone glucose-dependent insulinotropic peptide discount zyrtec 5 mg fast delivery, which K cells Intestinal glands stimulates the release of insulin Intestinal glands of Secretion of the hormone motilin, which accelerates gastric emptying, M cells duodenum and stimulates intestinal peristalsis, and stimulates the production of pepsin jejunum S cells Intestinal glands Secretion of the hormone secretin Table 23. Peyer’s patches are most prominent in young people and become less distinct as you age, which coincides with the general activity of our immune system. Epithelial cells continue the digestion and absorption of nutrients and transport these nutrients to the lymphatic and circulatory systems. In the small intestine, the products of food digestion are absorbed by different structures in the villi. Mechanical Digestion in the Small Intestine The movement of intestinal smooth muscles includes both segmentation and a form of peristalsis called migrating motility complexes. If you could see into the small intestine when it was going through segmentation, it would look as if the contents were being shoved incrementally back and forth, as the rings of smooth muscle repeatedly contract and then relax. Instead, it combines the chyme with digestive juices and pushes food particles against the mucosa to be absorbed. The duodenal mucosa secretes the hormone motilin, which initiates peristalsis in the form of a migrating motility complex. These complexes, which begin in the duodenum, force chyme through a short section of the small intestine and then stop. The next contraction begins a little bit farther down than the first, forces chyme a bit farther through the small intestine, then stops. These complexes move slowly down the small intestine, forcing chyme on the way, taking around 90 to 120 minutes to finally reach the end of the ileum. The ileocecal valve, a sphincter, is usually in a constricted state, but when motility in the ileum increases, this sphincter 1118 Chapter 23 | The Digestive System relaxes, allowing food residue to enter the first portion of the large intestine, the cecum. First, digestive activity in the stomach provokes the gastroileal reflex, which increases the force of ileal segmentation. Second, the stomach releases the hormone gastrin, which enhances ileal motility, thus relaxing the ileocecal sphincter. After chyme passes through, backward pressure helps close the sphincter, preventing backflow into the ileum. Because of this reflex, your lunch is completely emptied from your stomach and small intestine by the time you eat your dinner. Chemical Digestion in the Small Intestine The digestion of proteins and carbohydrates, which partially occurs in the stomach, is completed in the small intestine with the aid of intestinal and pancreatic juices. Lipids arrive in the intestine largely undigested, so much of the focus here is on lipid digestion, which is facilitated by bile and the enzyme pancreatic lipase. Moreover, intestinal juice combines with pancreatic juice to provide a liquid medium that facilitates absorption. The small intestine’s absorptive cells also synthesize digestive enzymes and then place them in the plasma membranes of the microvilli. This distinguishes the small intestine from the stomach; that is, enzymatic digestion occurs not only in the lumen, but also on the luminal surfaces of the mucosal cells. This is because chyme from the stomach is typically hypertonic, and if large quantities were forced all at once into the small intestine, the resulting osmotic water loss from the blood into the intestinal lumen would result in potentially life-threatening low blood volume. In addition, continued digestion requires an upward adjustment of the low pH of stomach chyme, along with rigorous mixing of the chyme with bile and pancreatic juices. Both processes take time, so the pumping action of the pylorus must be carefully controlled to prevent the duodenum from being overwhelmed with chyme. Small Intestine: Lactose Intolerance Lactose intolerance is a condition characterized by indigestion caused by dairy products. It occurs when the absorptive cells of the small intestine do not produce enough lactase, the enzyme that digests the milk sugar lactose. In contrast, some human populations, most notably Caucasians, are able to maintain the ability to produce lactase as adults. Symptom severity ranges from mild discomfort to severe pain; however, symptoms resolve once the lactose is eliminated in feces.
|Comparative prices of Zyrtec|