Description of studies
Fifty-five articles matching the selection criteria were included in the review. An overview of article design, approach, aim and sample is presented in Table 1. From the 55 articles included, 41 studies had a descriptive design, six were literature reviews, three were instrument development studies, two were quasi-experimental studies, two were mixed method studies, while one was a case-control study. Forty-two articles had a qualitative approach, eight articles had a quantitative approach, and five articles combined both quantitative and qualitative approaches. The sample sizes varied from 7 to 1294 participants. The 55 included studies were conducted in Sweden (n=33), the UK (n=5), Denmark (n=4), Australia (n=4), the Netherlands (n=3), the United States (n=2), Canada (n=2), Brazil (n=1) and Finland (n=1). Fifty articles in the review provided data on more than one phase, and the result of the data analysis is presented in Tables 2 and 3.
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Opening
The result reveals that the nurse typically opens the call with a greeting and a presentation. Receiving the caller in a welcoming and respectful way lays the foundation for establishing a caring relationship.
Greeting and presentation
The nurse starts by greeting the caller and introducing him/herself by name and title (2, 25-27) in a friendly tone of voice (25). The nurse gathers personal and residence information when appropriate (28). Opening sequences are typically short and quickly transition into the next phase of the call by eliciting the reason for calling (26-27).
Welcoming the caller
During the opening phase of the call, the caller should be received in a friendly and respectful manner to facilitate connection with the caller (6, 19, 29-35). This implies that the nurse uses a friendly tone of voice (2, 29-30), is present and listening (2, 19, 30, 32, 36), remains calm and understanding (19, 30, 32-34 36), and displays a willingness to help (29). The tone of voice is central to conveying emotional status and mood, and voice mode together with support signals indicates that the nurse is interested, engaged and willing to help (37-38). The voice is utilised as a communication tool by adjusting the rhythm and tone to match the situation (35).
The opposite of a welcoming and friendly reception is described when the nurse has a superior attitude, and when the nurse expresses feelings of irritation, condescension, patronisation, or disagreement or distrust about the magnitude of the problem (19, 29, 39). This can lead to the caller having feelings of being inconvenient, worthless, dismissed and evicted (29, 33, 39), thus inhibiting the willingness to share important information about their symptoms (2).
Establishing a caring relationship
Forming an alliance with the caller is important for establishing trust and confidence so that the caller feels free to present the problem and reason for calling (2, 5, 26-27, 29, 32, 40-45). The first impression is crucial for gaining the caller’s confidence, and trust and confidence are easily lost if the nurse is stressed or behaves in an unprofessional way (29, 40-41, 44). A caring relationship facilitates the delivery of information later in the conversation, favouring the assessment and enhancing further healthcare contacts (27, 29, 32, 40-41, 43). To establish a relationship, the nurse should create a sense of presence in the conversation (35, 46). Presence can also be demonstrated through a calm and friendly composure (29-30, 42), and the caller should be the centre of attention (41). Personalizing a call can be done by addressing the caller by name (42, 44), by the use of humour (when appropriate) or by alluding to something that the nurse and caller have in common (29, 32, 35).
Listening
When the nurse has opened the call, the call quickly proceeds to the listening phase. The nurse invites the patient to tell their story, listens actively and confirms his or her understanding with the caller.
Inviting the caller to tell their story
The nurse starts this phase by asking an open and nonspecific question to invite the caller to tell their story (2, 25-27). The caller usually presents their reason for calling as a narrative (26) and prefers to tell the story at the beginning of the call (47). It is important that the caller be allowed to tell their story in full without being interrupted by questions or unnecessary remarks (38, 42, 47-48). The nurse invites the caller to tell their story and present their problems in their own way and using their own words (26-27, 38, 45, 47-50). The nurse steers the call by assigning the caller the role of speaker, with the nurse playing the part of listener (38, 51).
The caller is given time and space to speak (28, 31, 36, 40, 47). The nurse is active and responsive in listening and encourages the full telling of the caller's story (38, 52). One way of doing this is to use support signals, like “OK?”. “Mhm” and “Yes?”. Support signals are also used to steer the conversation and to change focus, regain focus, or end topics (38), for instance, when the caller’s story loses focus (47). The conversation with the nurse holds the possibility for the caller to share worries and concerns (6, 32), and listening has a calming effect (38, 50). When the nurse remains calm while listening, this contributes to relieving distress and worry in the caller. (36, 42, 53). Blocking or discouraging the caller from telling their story is dangerous and imposes a risk of undertriage (39).
It is essential that the nurse is aware of the caller’s exposed position and shows respect by taking the caller seriously (6, 29, 33, 41). This can involve caring about the caller, showing interest in the patient’s story, allowing them to speak without interruption and being genuine, sensitive and responsive (29-30, 38, 47, 54-57). Showing interest signals a will to understand (38) beyond the purely medical aspects of the caller’s situation (29), as well as a will to help (58). One way to show respect is to adopt an attitude of humility and to avoid a superior approach (38, 41, 54). The caller should not be interrupted, trivialized or disrespected. Being disrespected creates distrust in the service, increases the need for second opinions and visits to emergency services (42), and lowers the quality of the TN service (19). Instead, the nurse should partner with the patient, striving for mutual respect and trust through dialogue (5, 29, 32, 38).
Active listening
While the caller is telling their story, the nurse adopts an active listening position where the caller’s story is in focus (37-38, 45-46, 50-52, 59. Active listening implies that the nurse takes on the communicative role of listener and uses support signals and encouragement to aid the speaker’s narrative. Active listening is expressed by support signals that convey interest and openness to continued interaction, facilitate the establishment of a caring relationship, build confidence, relieve anxiety and provide a quicker basis for assessment (38). The nurse expresses empathy and caring (25, 28, 32, 37-38), acknowledging the caller´s feelings and experiences (37, 45). Empathy is typically communicated when the caller expresses suffering or distress (38). Empathy is expressed through the choice of words, voice, intonation (25) or support signals and projects compassion, warmth and an identification with the speaker's emotions (38).
While listening actively to the caller, the nurse tunes in to the caller’s story. Tuning in implies trying to take in the situation and the caller to reach a comprehensive understanding of the situation (2, 7, 30, 38, 47). The nurse listens to verbal and nonverbal clues such as background sounds and the caller’s tone of voice (44, 47), and uses them as a basis for their assessment (34, 55, 60).
Confirming understanding
When the caller has shared their story with the nurse, the nurse confirms the caller (25, 28, 33, 37) to convey both an understanding of the actual circumstances described by the caller (30, 33, 38), and also to convey an understanding of the caller's feelings and experiences (33, 38). The nurse remains calm and listens to the caller and then summarizes what the caller has said to ensure that situation has been understood correctly (30). Confirmation can be of a practical character, meaning an acknowledgment that received information has been registered and understood. Confirmation can be given using support signals and by being attentive to the caller’s feelings and acknowledging or naming these feelings in words (25, 28, 37, 41). The use of support signals is important, since they can also be non-confirmative, signalling that the listener is bored, uncomprehending and sceptical, thus blocking communication and disrespecting the caller. The nurse's response to emotions by using support signals reflects the nurse’s attitudes and reactions (38).
Analyzing
When the caller has finished their narrative, the nurse advances to the next stage in the process and starts asking questions. In this phase, the nurse gathers and assesses information, and verifies with the caller that the information has been understood correctly.
Gathering information
Asking the right questions is essential in order to gather the information that is needed to make an accurate assessment (2, 5, 17-19, 26, 28, 30-31, 34, 36, 40, 44, 47, 52, 55, 61-63). The nurse will in some cases open this phase of the call by explaining to the caller that she will now proceed with a series of questions in order to make a correct assessment (44). The nurse gathers information by asking questions about the caller’s perception of the problem (34, 49), physical symptoms (2, 17-18, 31, 44, 51, 62, 64), vital signs (26, 46), previous medical history (18, 28, 31), medications (28, 31) and the caller’s situation (44, 46, 52, 64).
The nurse gathers increasingly specific information about the health needs and context of the caller (2). Open-ended questions have been found to provide the nurse with more medical information compared to closed questions (18, 40, 65) without increasing the total time of the calls (18, 61, 66). However, closed questions are also necessary in some cases when the nurse is gathering specific information in an effort to pinpoint the problem (2, 31). Clarifying statements and declarative (yes/no) questions can also be used to specify the concern and to rule out other diseases or conditions (2). Some symptoms require detailed questioning, rephrasing questions with examples, or asking the caller to perform self-tests to enable the nurse to gain an overview of the situation and visualize the caller and the symptoms (34, 44, 52). The caller can be instructed to perform physical examinations like capillary refill time or measuring the fever, to perform a certain action to know if it provokes pain or not, or to say whether bodily features appear “normal” (35, 42, 44, 52, 67).
The absence of visual cues implies that good questioning skills are needed to gather information that would normally be observed with the naked eye. It also requires that the nurse is able to listen attentively and interpret nonverbal clues and background sounds, such as breathing, tone of voice, word choice, dissonances and paralanguage to build an understanding of the patient and the situation as a whole (5, 19,35, 44, 52, 55, 60, 63-64).
The information should be gathered with a holistic approach, aiming to understand the caller’s context and situation so that information about the physical, emotional or social impact of the problem is obtained (18, 32, 45, 52, 59, 68). Information about the caller’s abilities and context can support decision-making (35, 64). It is important that the nurse strives to gather first-hand information, thus avoiding talking through a third party due to the difficulty of interpreting second-hand information. (18-19, 31, 34, 42, 69). Second-hand information can impose risks to patient safety in terms of faulty or misleading information (19, 34, 65), as well as ethical dilemmas (69).
Nurses also gather information through medical records (2, 35) and by using Computerized Decision-Support Systems (CDSS). Nurses using CDSS ask more declarative questions. Declarative questions can make it easier to rule out a variety of medical problems but can also impose constraints on the topical agenda and steer the conversation in the wrong direction (62, 70). Nurses are responsible for leading and structuring the call (31, 35, 43, 60). Structuring the call enables the nurse to obtain correct information (19) and obtain a distinct interaction that is concise and advancing forward (30, 32). One way of structuring the gathering of information is, according to Morgan and Muskett (27), to begin questioning with a semi-standardised phrase such as “I am now going to ask you a series of questions” to clarify the beginning of this phase in the conversation.
Asking questions has been described as detective work (5), and the nurse has only the information provided by the caller to rely on (69). The nurse must believe in the caller (32) but at the same time not simply accept the caller´s opinion about the cause of the problem, since this in some cases can be misleading and cause safety threats (66).
Assessing information
A central part of TN is to make an accurate medical assessment of symptom severity and urgency (28, 43, 55). The assessment is based on detailed information about physical signs and symptoms, as well as the caller´s context (35, 46, 53) and nonverbal cues and background sounds (5, 19, 35, 44, 52, 60, 63-64). The lack of visual information and the need to rely primarily on verbal caller information can cause concern and worry about misunderstandings or misinterpretations (55, 68).
To make a correct assessment, the nurse needs to identify and uncover potential medical problems that can pose a risk to the caller´s health and act appropriately (28, 31). Another part of the TN process is, according to Greenberg (2), to identify and meet the caller’s needs. To identify a caller’s needs, nurses need to explore the caller’s worry and give callers time to express their needs (41-42). This implies placing the caller at the centre of attention (41), respecting each person as unique (29, 41-42) and confirming the caller’s emotions about the concern (29).
During the call, the nurse strives to gain an overview and a sense of the context of the person (2, 35, 46) to become a responsive part of a caring relationship (29, 46), and to build a mental image of the caller and the situation (46). This implies that the nurse attempts to construct a mental image of the caller and context to gain a sense of the caller and visualize the situation to compensate for the lack of visual data (44, 46, 52, 64). To identify the symptom location, nurses will in some cases touch the location on their own body while simultaneously verifying that the location corresponds to that of the callers. This is described as a technique for visualizing body location (44).
Nursing skill, knowledge and experience aid assessments and decision-making and allows the nurse to interpret and assess the callers’ condition over the telephone (2, 32, 46, 52, 55, 64, 65S). When unsure about the assessment, nurses often turn to colleagues, such as nurses and physicians, for information and advice (2, 52). Protocols and CDCC are also used to guide information-gathering, aid assessment and support decision-making (2, 18, 28, 30, 52, 70-71). However, the CDSS response options do not always match the caller’s report of their symptoms (2, 70), which can lead to a dilemma if the CDSS recommendation does not align with the nurse's clinical reasoning (64). In these cases, nurses will sometimes rely on their experience and knowledge, and overrule the CDSS recommendation (71). According to Snelgrove (32), the software should be treated “as an adjunct rather than an equal partner in the decision-making process” (p.359).
Verifying and clarifying information
The inability to see the caller in person can cause uncertainty about the assessment (19, 68), especially in the presence of language barriers (34, 68) or imprecise or vague communication (51). Sometimes the nurse can perceive the caller is giving too limited or conflicting information or suspects that the caller is understating or overstating the magnitude of the problem (34, 64). One way of dealing with this uncertainty is to verify and clarify information with the caller (2, 35). Information can be verified or clarified by asking for confirmation (48, 52), summarizing (30-31, 37, 48); repeating (18, 48), or comparing (2, 26).
Asking for confirmation implies that the nurse asks questions to verify that the information gathered is correct (48, 52). Rephrasing involves rephrasing questions or information (44). Summarizing involves summarizing what the caller has said or asking the caller to summarize what they have understood to verify that information has been understood correctly (30, 48-49). Repeating involves repeating information in the form of clarifying statements or questions (18, 37). Comparing involves asking a series of questions and comparing incoming information with existing nursing knowledge and experience to rule out conditions (2, 26, 62). Such questions are typically posed in the form of negative declaratives to rule out, rather than to confirm the presence of these signs (26, 62). These declarations are often prefaced with ‘And’ as in “...And you don’t have any fever?” (62).
Motivating
In the next phase of the telephone nursing dialogue process, the nurse reaches a final assessment, gives advice and guidance and informs the caller. The nurse strives to achieve a mutual understanding of the problem and the assessment, and a mutual agreement about the plan of action. The nurse also supports the caller using confirming and empowering strategies.
Reaching a final assessment
When information is appropriately gathered, assessed and verified, the nurse reaches a final assessment that includes a triage decision about what advice to give the caller and which care level to recommend (2, 5, 33). The triage decision concerns the output of the call (2, 25, 31-32, 34), and the output of the call are the nursing actions designed to solve problems (37) and meet the caller’s needs (2). The output can include providing information, giving self-care advice and/or further referring the caller (2, 5, 33). The nurse assesses the caller’s capabilities of performing self-care and managing the situation (5, 39). The plan of action is based on the final assessment and tailored to the urgency or acuity of the problem, taking into consideration the caller’s situation and capabilities of managing the situation, performing self-care, available resources and access to healthcare (2, 5, 31, 39, 45-46). The nurse´s final assessment is presented to the caller (27).
Informing the caller
The nurse informs the caller through the provision of information and explanation. The nurse explains bodily functions (5, 54) and the reasoning behind the triage decision (5, 29, 44). The nurse gives information about symptoms and risks (6), as well as medications and potential side effects (7). The information should be clear, correct, credible (7, 19, 28, 33, 44, 50, 57) and relevant to the caller’s situation (33), as too much information might cause stress and confusion (19, 66). Informing the caller creates an awareness about the underlying cause of the condition (40, 69) and has the potential to inspire the caller to think in new ways about the situation (30).
Giving advice and guidance
Depending on the final assessment, the nurse advises the caller on what to do and guides the caller to the correct level of care (5-7, 33-34, 43, 58, 61). The advice may apply to the care, management and/or treatment of the medical problem (6-7, 27, 61), self-care actions (6, 33-34, 50, 72) or referral to the correct level of care (5, 7, 28, 33, 43, 58). The advice should be practical, clear and hands-on (7, 37, 39), personalized to match the caller’s needs (7, 58), and correct and evidence-based (58). The advice should be clear, easy to understand and easy to follow (31, 33, 43), as overly complex advice makes it difficult for the caller to focus (39). According to Leppänen (53), explicit advice is used to increase the caller’s compliance, for instance, when the medical problem is potentially very serious or urgent.
The nurse gives relevant self-care advice to enable the caller to be self-reliant and to manage the situation correctly (5, 28, 30-31, 68). Advice on self-care actions is appreciated since many callers want to avoid unnecessary visits to the healthcare facility (6, 58) or taking unnecessary antibiotics (55). If the medical problem warrants further examination or treatment, the nurse guides the caller to the correct caregiver and level of care (7, 40, 43, 45, 50, 60). When advising and guiding the caller, the nurse follows protocol and CDSS (52). The CDSS can be an aid for reflection and scrutiny within the assessments and recommendations (71). In addition, following protocol and CDSS reduces professional vulnerability and the possibility of legal consequences in case of erroneous assessments or advice (52). When giving advice, it is essential to adjust and adapt the advice according to the caller's specific situation and needs (2, 25, 30-31, 33, 37, 39, 52, 56).
Creating mutual agreement and understanding
During this phase of the call, the nurse attempts to achieve a mutual understanding of the problem and the solution, and a mutually agreed plan of action (25, 37, 39, 46, 51, 54). Based on the triage decision, the nurse establishes a plan of action together with the caller (25, 39, 46). Compliance with and acceptance of the plan of action increases when the caller takes an active part in the decision-making (33). The nurse collaborates with the caller by creating a dialogue with the caller where the nurse and caller work together to explore options and find solutions that the caller is satisfied with and feels secure with (2, 33, 43, 45, 57).
The nurse adapts language, voice mode and/or speech rate depending on the age, fluency and level of education of the caller to ensure mutual understanding (31, 35, 41, 44). The nurse follows up on the caller’s understanding to ensure that the triage decision and the advice are understood and feasible (19, 31, 34, 60-61) and is accommodating in case of disagreement (19, 27, 31). The nurse respects the caller´s free will and considers each caller as an autonomous person capable of managing their own situation (35, 56).
The nurse checks that she has understood the caller correctly by summarizing the triage decision and advice. The nurse verifies the summary with the caller and adjusts the summary if necessary (19, 28, 30, 36, 61). Sometimes there may be disagreement regarding the triage decision, for example, when there is a discrepancy between expectations of care and assessment of care needs. Ensuring mutual understanding and agreement require pedagogical competence and an ability to explain what actions are medically justified (54). If the nurse fails to achieve a mutual agreement about call output, the caller might feel dismissed and unsafe (29, 58), which can lead to frustration, dissatisfaction and not following the triage decision (19, 54). The nurse should bear in mind that there is a possibility that self-care advice might be perceived as gatekeeping intended to hinder access to physical care facilities (43). It is essential that the nurse is respectful towards the caller (29), which implies talking in a calm voice and tone, and being genuine, caring, compassionate, friendly, helpful and patient (29, 33, 46, 50, 58). Having a nonchalant attitude, diminishing the caller’s concern or providing unsatisfactory explanations manifests a lack of respect (29, 41) and can result in strong reactions, anger and irritation (41). A mutual understanding and a respectful treatment inspire trust in the nurse and the call output (41, 58).
Supporting the caller
The nurse supports the caller to empower them in coping with the illness (37, 51, 58, 72). The support can consist of positive feedback that the self-care performed is correct, a calm appearance and emotional confirmation, as well as confirmation of the caller’s own decision to seek care (5-6, 33, 35, 51, 58, 72). Receiving personalized support based on the care seeker’s knowledge and personal circumstances can lead to calm, reassurance and satisfaction of needs (31, 40, 42, 51, 58). Many callers express concern, and the nurse responds with an ambition to inspire comfort and calm (17, 43, 54, 61). This can imply calming the caller with information that the problems are transient and describing the natural course of the illness (19, 30). Nurses confirm and empower the caller through the use of supportive strategies like offering reassurance, encouragement, validation and acknowledgement (2, 37, 39, 45, 52, 54).
Ending
Before ending the call, the nurse checks for mutual agreement and understanding, provides support and safety-netting advice, follows up the call if needed and ultimately rounds off the call.
Checking for mutual agreement and understanding
Before ending the call, the nurse needs to check for mutual understanding and agreement (2, 19, 29-31, 49, 72). This can be done by repeating, paraphrasing or summarizing what has been agreed upon (2, 17, 29-31, 37, 49) or by asking the caller to repeat what has been decided to verify the caller´s understanding and to crosscheck that the follow-up action is understood and feasible (18-19, 28, 72). The nurse should verify that the caller is comfortable with the choice of intervention (2, 19, 28, 43, 53) either by observing the caller´s responses to the advice given (53) or by asking the caller directly (2, 19, 28, 42). The call should be terminated with a clear agreement on further handling of the situation (2, 19, 28-29, 35, 39).
Giving safety-net advice
Before terminating the call, the nurse gives safety-net advice about warning signs and symptoms that warrant a new assessment, or who to contact in case the symptoms worsen or if there is no improvement (2, 7, 25, 27-28, 31, 42, 52, 55, 60). The caller should be invited to call again in case the symptoms worsen or show no signs of improvement (29-30, 36, 55).
Monitoring the caller
In some cases, a monitoring call (also called a follow-up call) could be necessary. Monitoring the caller may be indicated to observe the course of the disease and to safeguard the initial assessment, especially if there remains some uncertainty regarding the assessment or the choice of intervention (2, 5, 6, 19, 41, 51, 63, 66, 72). A monitoring call provides an opportunity to re-assess the situation, to ask more questions and give new advice (2, 5, 6, 41, 51, 63, 66, 72). A monitoring call may result in a deeper, more personal contact as the caller feels that their situation is being taken seriously, that they are secure and cared for, and that they are not alone (2, 5-6, 30, 51, 72). As such, this call has the potential to ease worry. It can also give the caller a feeling of shared responsibility with the nurse (6).
A monitoring call can provide output validation about whether the initial assessment and advice were appropriate and thus constitute a learning opportunity for the nurse (2, 52, 68). It also enables the caller to safely perform self-care at home (6, 72), thus avoiding unnecessary visits and relieving the pressure on healthcare (72). The caller’s self-care ability could also be strengthened through a mutual evaluation of self-care effect and symptom development during the monitoring call (30, 37, 72).
Rounding off
Ultimately, the nurse rounds off the call. This is typically done through an increase in speech pace of the nurse, less participation in the conversation from the caller and through the use of closing questions (27). These communicative features mark the end of the conversation. However, it is important that the nurse ties together the conversation in a meaningful way before ending the call (29) and that the pressure of calls waiting does not lead to a premature closing of the call (65).