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Pathophysiology: Iron
Deficiency Anemia
Topic: Health & Medicine Words: 3004 Pages: 11 Sep 14th, 2020
Iron Deficiency Anemia (IDA) is an abnormal body condition
characterized by lack of enough erythrocytes in the blood (McCance et
al, 2010). The disease is brought about by low amounts of iron in the
body which then hinder the production of hemoglobin. Thus, oxygen
transportation to the body tissues is negatively affected. IDA is the
commonest type of anemia affecting 2 billion people in the world and
3.4 million individuals in the US (Huch & Schaefer, 2006). The condition
affects twenty percent of reproductively active women and two percent
of adult males.
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The trend may be explained by menstrual bleeding in addition to poor
dietary intake and parasitic infections among other issues. According to
Springhouse (2006), the disease is found in all parts of the world and it
affects over eleven million people on yearly basis. In 1999, 118 deaths
related to IDA were reported in the US. People with IDA condition may
have some degree of coldness and conditions like pica. Additionally,
victims may have various complications which hamper their participation
in productive activities (Springhouse, 2006). Thus, the disease is of major
importance in human society.
The case study in this paper involves a forty seven years old male who
presents with the gradual onset of dyspnea on exertion and fatigue. He
also complains of frequent dyspepsia with nausea and occasional
epigastric pain. He has as a history of alcohol abuse. The patient states
that he has not had his usual energy level for the past three to four
months. His dyspnea has become much worse in the past few weeks.
He denies chest pain, orthopnea, edema, cough, wheezing, or recent
infections. He states that he has had occasional episodes of
hematemesis after drinking heavily, and subsequently had several days
of dark stools. He consumes two 6-packs of beer per day for the past 8
years since losing his job. Nothing seems to make his breathing any
better, but antacids help relieve his epigastric discomfort and dyspepsia.
On assessing his medical history, the patient denies any case of cardiac
or pulmonary disease. He was diagnosed with a duodenal ulcer in the
past and was on three drugs at once for a while 2 years ago, but
stopped taking them due to the cost. His only surgery was a childhood
tonsillectomy. He is a nonsmoker and takes no medications except overthe-counter antacids. He has no known allergies.
As such, further investigations on his medical history need to be
conducted to ascertain cases of critical diseases and major
hospitalizations. In addition, the client’s past hematologic setbacks, liver
problems and bleeding abnormalities may be examined (Collins, 2003).
Moreover, caregivers should investigate any cases of petechie and renal
or splenic disease and establish if the patient bruises easily.
Physical examinations reveal that he is a thin pale, white male in no
acute distress, but appears older than stated age. His vital signs are as
follows; temperature is 37 Celsius orally, pulse is 95 beats/min,
respiratory rate is 16 breaths/min and unlabored, and blood pressure is
120/72 mmHg in the right arm (sitting). His skin is pale without rashes or
spider angiomas. His sclera are pale, but without icterus. Cheilosis is
present. His pharynx is clear and without postnasal drainage. There is no
thyromegaly, adenopathy, or bruits. His nails are brittle and thin. His
abdomen is not distended and bowel sounds present. He bears some
pain in the upper middle part of the stomach (epigastric tenderness).
His prostate is not tender or enlarged. His stool is guaiac positive. He
has no joint deformity, muscle tenderness, or edema.
According to the laboratory tests, the hemoglobin is 8 g/dL and
hematocrit is 29%. The average corpuscular volume is typical, but the
average corpuscular Hb content is reduced. In addition, the erythrocyte
distribution width is amplified, and the reticulocyte count is less than
two percent. On the smear, there are mixed microcytic/hypochromic
and macrocytic/normochromic erythrocytes. The appearance of white
blood cells platelet is normal.
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The results of the prothrombin time, liver function tests, electrolytes,
and amylase are normal. Partial thromboplastin time is unaltered. Serum
ferritin, transferrin saturation, total iron-binding capacity, folate, and red
cell folate levels are decreased. The serum B12 level is normal. A bone
marrow biopsy shows megaloblastic changes and low iron stores. An
upper endoscopy reveals a 2 cm duodenal ulcer with evidence of recent
but not acute hemorrhage.
The patient was suspected to suffer from iron deficiency anemia. IDA is
said to be an advanced stage of iron deficiency in the body (McCance et
al, 2010). Low amounts of iron can be attributed to increased body
demand as a result of rapid development, excessive blood loss (during
menstruation or accidents) and reduced iron intake in the ileum (Huch &
Schaefer, 2006). In addition, deficiency may result from consumption of
foods that lack iron or that contains non heme iron.
This leads to a lower rate of absorption. Non heme iron has to be
converted to ferrous iron before absorption (Cannobio, 2009). Iron in the
blood system binds to transferrin which conveys it to erythroblast
receptors and also to cells in the liver and placenta. The erythroblast
mitochondria then converts iron to protoporphyrin and then to heme
while transferrin is recycled (McCance et al, 2010). Iron that remains
after this process is transported and stored as ferritin and hemosiderin
(Springhouse, 2006).
More iron is recycled from dying erythrocytes by transferrin. When iron
absorption is low, bone marrow stores are depleted so that production
of erythrocytes is hampered (Crowley, 2009). Nevertheless, a major
cause of IDA to this client may be prolonged bleeding from
gastrointestinal tracts and extended intravascular hemolysis as
evidenced by presence of an ulcer (Springhouse, 2006). Low levels of
iron intake may also result from upper small bowel malabsorption or
from gastrectomy. Extraordinarily, inadequate amounts of iron can be
attributed to under nutrition.
Iron deficiency anemia leads to inadequate Hb levels and thus low
amounts of oxygen are circulated. A decreased amount of oxygen in
circulation makes the heart to overwork and this may lead to heart
complications. In this situation, a person may feel exhausted, feeble and
have shortness of breath and develop a pale skin (McCance et al, 2010).
As the disease progresses, an individual may have cheilosis and brittle
nails and suffer from dysphagia. Lack of timely treatment may lead to
heart failure and this can be fatal (Crowley, 2009).
The disease can be detected through conducting Complete Blood Count
(CBC) (Springhouse, 2006). The test is used to ascertain hematocrit and
hemoglobin levels. Low levels signify an anemic condition. The test also
assesses the amount of leukocytes, erythrocytes and blood platelets.
Unusual results signify a blood disorder. Moreover, CBC test investigates
the MCV and MCHC which give clues to possible causes of anemia. In
addition, blood smears are made to observe the shape of erythrocytes
(McCance et al, 2010).
Abnormal shapes of red blood cells signify lack of hemoglobin in the
cell. Furthermore, reticulocyte count test may be conducted to assess
the functionality of bone marrow. Quantity of iron in the body may be
determined through testing serum ferritin and iron as well as
investigating the concentration of transferrin (Cannobio, 2006).
Moreover, red blood cell protoporphyrin tests and stool occult blood
procedures are important in establishing an anemic condition. Clinical
manifestations of this disease include fatigue, black stool, dizziness,
dyspepsia and ulcers as well as hometochezia (McCance et al, 2010).
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The client has all these symptoms and hence the need for treatment.
Iron deficiency anemia can be cured through treatment of root causes
such as hemorrhages and then taking iron supplements like ferrous
sulphate (Springhouse, 2006). Such supplements are in form of non
heme or heme iron and they can be taken orally or through an injection.
Other treatments may include taking iron rich foods like fish, eggs and
raisins. With such treatment, iron level should normalize within two
months (Mosby, 2010). There are no associated complications although
the disease may reappear. Therefore, one is advised to take regular
medical check ups. For effective treatment of IDA, assessment tests
ought to be interpreted clearly.
Physical tests revealed several abnormal conditions. The patient had a
thin pale coloration and he appeared older than the stated age even
though he suffered no stress. The normal color of the skin is lost due to
lack of hemoglobin and oxygen stress (Cannobio, 2006). The patient
might have seemed older due to prolonged exhaustion resulting from
breathing difficulties caused by oxygen stress. Furthermore, the
patient’s sclera was pale although it lacked icterus and his mouth’s
corner had signs of cheilosis which results from iron deficiency
(Springhouse, 2006).
In addition, his nails were brittle and thin in appearance. Finally,
abdominal and rectal tests showed presence of moderate epigastric
tenderness and guaiac positive stool. Guaiac positive stool may be
caused by bleeding in the gastrointestinal tracts while epigastric
tenderness indicates a bruise in the alimentary canal. These are physical
manifestation of anemia (Crowley, 2009). Nevertheless, there were some
encouraging results.
The patient had a standard body temperature (37 Celsius) and normal
pulse rate (95 beats per min). In addition, respiratory rate was normal
(16 breaths per minute) while the blood pressure was typical at 120/72
mmHg (Springhouse, 2006). The patient’s pupils were normal and his
pharynx was clear and without any postnasal drainage. More
encouraging results indicated that the patient suffered no cases of
thyromegaly, adenopathy, or bruits. Moreover, the client had good
bilateral lung expansion and lungs were clear to auscultation. Any cases
of gallops, heaves or thrills were dispelled. In addition, the patient’s
abdomen was non-distended and the liver span was 8cm at the
midclavicular line. His prostate was health and he seemed to have
stamina.
Analysis of diagnostic data revealed that the patient was suffering from
iron deficiency anemia. The patient’s hemoglobin was shown to be 8 g/dl
instead of 13-18g/dl for normal men (Springhouse, 2006). This signifies
erythrocytes under production and this may lead to less oxygen in
circulation thus fatigue and heart complications. The patient’s Mean
Corpuscular Volume was normal. However, this condition may exist even
in presence of normocytic anemia (Springhouse, 2006).
Additionally, the patient’s Mean Corpuscular Hemoglobin Content was
slightly declined. This is associated with conditions like microcytic
anemia and it is attributed to factors like iron deficiency, chronic blood
loss and thalassemia (Springhouse, 2006). Moreover, the red cell
distribution width was markedly increased while the MCV was normal.
This presented possible cases of early stages of iron deficiency, vitamin
B deficiency, and early folate deficiency as well as initial stages of
anemic condition (Cannobio, 2009).
The diagnostic results also showed mixed microcytic/hypochromic and
macrocytic/normochromic red blood cells. The findings can be
associated with folate and iron deficiencies (Cannobio, 2009). This
condition may also be responsible for normal MCV. The appearance of
platelets was normal hence their function in blood clotting was not
jeopardized. Further result revealed that “Prothrombin Time (PT), Partial
Thromboplastin Time (PTT)”, liver function, electrolytes, and amylase
were normal (Springhouse, 2006).
Normal PPT meant that coagulation factors such as fibrinogen and
prothrombin as well as heparin were up to standard amounts
(Springhouse, 2006). Normal PT implied that there was good interaction
of prothrombin groups V, VII, X and fibrinogen which are useful in
determining amounts of oral anti-coagulants. Serum ferritin levels were
decreased and this is attributed to prolonged bleeding of the digestive
tract, iron deficiency or deprived iron absorption due to abnormal
intestinal conditions (Springhouse, 2006).
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This may ultimately lead to anemia and it explains why the patient’s
stool tested guaiac positive. The patient’s transferrin saturation was
decreased and this is also associated with iron deficiency. Decreased
levels of total iron binding capacity implied that the patient also
suffered from anemia of chronic ailments (Springhouse, 2006). Folate
and cell folate levels were decreased and this shows depletion of folate
storage. More so, a bone marrow biopsy showed megaloblastic changes
and low iron stores giving more clues to iron deficiency anemia as well
as megaloblastic anemia (Cannobio, 2009). Finally, an upper endoscopy
revealed a 2cm duodenal ulcer with evidence of recent but non acute
hemorrhage. This could be attributed to Helicobacter pylori infection
which may cause bleeding (Springhouse, 2006). All the findings are
therefore contributing to iron deficiency anemia.
Treatment of iron deficiency anemia was initiated after the
assessments. The basic objectives were to correct iron deficiency, cure
the ulcers, address the underlying causes and ensure that Hb levels get
back to normal (Springhouse, 2006). The patient was admitted for three
days.
Initially, iron supplement (ferrous sulfate) was administered orally twice
a day. The first dose (60mg) was given thirty minutes before meals and
this was to be continued until Hb levels get back to normal. Iron is
readily absorbed in an empty stomach (Springhouse, 2006).
Supplemental iron was given together with vitamin C (500mg) since it
improves iron uptake in the ileum. In addition, stool softer was
prescribed as iron supplements are known to cause constipation in
addition to dark stool, inflammation of gastrointestinal tracts and
acidity. Furthermore, anti-acids were given 4 hours after meals.
However, the patient failed to tolerate oral iron and reported no
improvement.
A hematologist was consulted and cancelled oral supplements and
opted for intravenous injections (I.V.). The hematologist argued that I. V.
injections require less dosage and they are less painful although they
offer the same remedy as oral supplements (McCance et al, 2010).
However, there were concerns that parenteral iron may lead to
unpleasant side effects like thrombophlebitis, anaphylactoid responses
and blood ailments (Crowley, 2009). Antibiotics were prescribed so as to
eliminate bacterial infections thus controlling ulcers.
The patient’s reaction to these remedies was assessed by continuous
hemoglobin measure and the results were encouraging. The condition
was likely to get cured within two months. Further consultations were
made with a nutritionist who advised the patient to continue consuming
iron rich meals. Such foods include fish, meat and vegetables which
promote iron absorption in the body (Crowley, 2009). The patient had no
complications as a result of this treatment. The anemia resource nurse
was consulted and the patient was discharged home on day three with
instructions to follow with the hospital primary care clinic in one week.
Nursing care plans play a key role in the management of iron deficiency
anemia. Nursing care plans for this patient were developed after
interpretation of all the data collected. Conditions like exhaustion and
weakness, lack of breath on exertion as well as low levels of
perseverance during activity are signs of activity intolerance (Doenges,
Moorhouse & Murr, 2010). Nursing diagnoses for activity intolerance has
specific expected client outcomes.
As such, the levels of hemoglobin and hemocrit should get back to
normal, breathing difficulties on exertion ought to be eradicated and the
patient should exhibit more activity leniency as well as ADLs. This is
achieved through nursing interventions aimed at energy management.
Such interventions may include examining the patient’s breath rate,
pulse rate and other conditions like dyspnea after activity. Scientifically,
altered rates may arise if the heart and the lungs strain due to low
oxygen supply (Springhouse, 2006). Over straining the heart may lead to
its failure. Moreover, the nurse rested the patient in a calm surrounding
and cancelled frequent visitations.
This helps to decrease body’s oxygen demand and thus the heart and
lungs are not overworked (Cannobio, 2009). Furthermore, it helps the
client to avoid visitors with upper respiratory diseases which can affect
him through cross infection. In addition, the care provider allowed the
patient to carryout light activities and ensured breaks between activities.
This helps to preserve energy and also boost the client’s self confidence
(Ackley & Ladwig, 2008). This care plan helped the patient to attain high
levels of activity tolerance. Also, the levels of hemoglobin in the body
were noted to rise slowly.
The other nursing diagnosis for this patient was malnutrition. This
nursing care plan was a result of imbalanced diet and it was
necessitated by conditions like exhaustion and weakness while
performing minor duties (Doenges, Moorhouse & Murr, 2010). It was
aimed at helping the client consume foods rich in iron so that body iron
levels may normalize. To achieve this nutrition remedy, the care provider
had to evaluate the client’s dietary history as it helps to establish the
cause of malnutrition and possible ways of addressing it. Furthermore,
the nurse had to teach both the client and relatives about the anemic
condition and better ways of managing it. The rationale behind this was
that the patient and home caregivers would appreciate the importance
of foods which are rich in iron (Ackley & Ladwig, 2008). In addition, the
nurse had to give iron supplements as required since they help to boost
the amount of iron in the body.
The final nursing diagnosis involved the risk of infection. This is
important as the patient had a lesion on the mouth which could lead to
contamination (Doenges, Moorhouse & Murr, 2010). Furthermore, anemic
individuals are prone to cross infections and they bruise easily. The
expected client outcomes were improvement of body immunity and
elimination of acts which may lead to infection. As such, nursing
intervention included washing the client’s hands before meals to avoid
contamination, covering lesions to avoid secondary infections and
isolating the patient from persons with respiratory disease to avoid
cross infection (Ackley & Ladwig, 2008).
The client had indicated that he was on three drugs at once and
stopped taking them due to financial difficulties. Therefore, he should
have been taught the importance of following treatment programs to
the end. The patient could have obtained free medication from antianemia groups. More advice should have been given concerning
insurance policies as well as their importance in health care.
Furthermore, the client should have been informed about the hazards of
consuming alcohol since it affects iron absorption and can also
aggravate ulcers.
Iron deficiency anemia is a complex process and can be life threatening.
However, with prompt treatment, it can be managed with a successful
outcome for the patient. Nurses play a pivotal role in the prevention,
detection, and treatment of IDA.
References
Ackley, B. J., & Ladwig, G. B. (2008). Nursing diagnosis handbook: An
evidence- based guide to planning care. (8th Ed.). St Louis: Mosby
Elsevier.
Cannobio, M. M. (2006). Mosby’s handbook of patient teaching. USA:
Mosby Inc.
Collins, D. (2003). Algorithmic Diagnosis of Symptom. Web.
Crowley, L. V. (2009). An Introduction to Human Disease: Pathology and
Pathophysiology Correlations. United Kingdom: Jones and Barrlett
Publisher.
Doenges, M., Moorhouse, M., & Murr, A. (2010). Nursing Care Plans:
Guidelines for Individualizing Client Car across the Life Span.
Philadelphia: F. A. Davis Company.
Huch, R. & Schaefer, R. (2006).Iron deficiency and iron deficiency anemia:
a pocket atlas special. Germany: Georg Thime Verlag KG.
McCance, K. L., Huether, S. E., Brashers, V., & Rote.
(2010). Pathophysiology: The biologic basis for disease in adults and
children. (6th Ed.). Maryland Heights, MO: Elsevier Mosby.
Springhouse. (2006). Professional Guide to Signs & Symptoms. (5th Ed.).
Lippincott Williams & Wilkins.
Ultrasound in Acute Appendicitis Diagnosis
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